Stockholders' Equity - Additional Information (Detail)
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1 Months Ended |
3 Months Ended |
6 Months Ended |
9 Months Ended |
12 Months Ended |
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Aug. 16, 2019
USD ($)
$ / shares
shares
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Sep. 30, 2014
$ / shares
shares
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Dec. 31, 2020
USD ($)
$ / shares
shares
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Sep. 30, 2020
shares
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Dec. 31, 2019
USD ($)
$ / shares
shares
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Sep. 30, 2019
USD ($)
shares
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Dec. 31, 2020
USD ($)
$ / shares
shares
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Dec. 31, 2019
USD ($)
$ / shares
shares
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Aug. 19, 2021
shares
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Jun. 26, 2021
shares
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Jun. 30, 2020
USD ($)
$ / shares
shares
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Jun. 30, 2016
$ / shares
shares
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Aug. 14, 2020
shares
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Class Of Stock [Line Items] |
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Deemed dividend recognized on beneficial conversion features of Series C Preferred stock issuance | $ |
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$ 3,181,000
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Preferred stock, par value | $ / shares |
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$ 0.001
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$ 0.001
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$ 0.001
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Underwritten public offering, description |
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the Company closed on the sale of (i) 4,895,000 shares of its common stock, par value $0.001 per share (the “Common Stock”), (ii) pre-funded warrants (“PFW”) to purchase an aggregate of 2,655,000 shares of Common Stock and (iii) common warrants to purchase an aggregate of 7,762,500 shares of Common Stock (“2020 Investor Warrants”), including 800,000 shares of Common Stock and 2020 Investor Warrants to purchase an aggregate of 1,012,500 shares of Common Stock sold pursuant to a partial exercise by the underwriters of the underwriters’ option to purchase additional securities, in the Company’s underwritten public offering (the “Offering”). Each share of Common Stock or PFW, as applicable, was sold together with a 2020 Investor Warrant to purchase one share of Common Stock at a combined effective price to the public of $1.00 per share of Common Stock and accompanying 2020 Investor Warrant.
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Common stock, shares issued |
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25,868,000
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25,868,000
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11,458,000
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Warrants exercised for cash | $ |
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$ 1,180,000
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$ 27,000
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Shares issued for services | $ |
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$ 3,000
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$ 5,000
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Accumulated stock option exercises |
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35,000
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Number of options granted |
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4,999,000
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Total compensation expense | $ |
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$ 2,125,000
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160,000
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$ 2,530,000
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211,000
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Stock options exercisable |
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1,221
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1,221
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Accelerated vested of stock option |
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279,675
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Accelerated expense | $ |
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$ 53,455,000
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Stock option exercise price | $ / shares |
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$ 0.61
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$ 0.61
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Number of stock options outstanding |
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6,487
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6,487
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Stock options [Member] |
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Class Of Stock [Line Items] |
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Aggregate intrinsic value of stock options outstanding | $ |
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$ 789,343
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39,198
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$ 789,343
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39,198
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Aggregate intrinsic value of stock options exercisable | $ |
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571,657
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$ 7,472
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571,657
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7,472
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Unrecognized compensation expense | $ |
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$ 5,700
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$ 5,700
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Unrecognized compensation expense, term |
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2 years 9 months
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Aggregate intrinsic value of unvested stock options | $ |
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$ 217,686
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$ 31,726
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Weighted average contractual term |
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9 years 7 months 20 days
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9 years 6 months 7 days
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2017 Omnibus Incentive Plan [Member] |
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Class Of Stock [Line Items] |
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Number of shares available under the plan |
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6,700,000
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Common stock, shares outstanding |
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142,375
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142,375
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Common stock, shares issued | $ |
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$ 6,344,334,000
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Common stock issued under the 2017 Plan |
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178,291
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Percentage of fully diluted shares of common stock |
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8.00%
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Number of options granted |
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222,584
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155,734
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66,850
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Previous grants during the period |
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250,000
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Stock options [Member] |
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Class Of Stock [Line Items] |
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Accumulated stock option exercises |
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35
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Number of options granted |
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4,999,000
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Stock option exercise price | $ / shares |
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$ 0.61
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Number of options forfeited |
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14,000
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Number of stock options outstanding |
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6,487,000
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6,487,000
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1,559,000
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Stock options [Member] | CA$ $20.00 Exercise Price |
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Class Of Stock [Line Items] |
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Stock option exercise price | $ / shares |
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$ 15.70
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$ 15.70
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Number of stock options outstanding |
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2,500
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2,500
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Common stock |
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Class Of Stock [Line Items] |
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Series B preferred stock dividend, shares |
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3,000
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4,000
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4,000
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4,000
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Conversion of Series B preferred stock to common stock, shares |
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10,000
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6,000
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Issued warrants to underwriters |
4,895,000
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Warrants exercise price | $ / shares |
$ 0.001
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Shares issued for services, shares |
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5,000
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7,000
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0
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11,672
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Shares issued for services | $ |
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$ 0
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$ 8,187
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Pre-Funded Warrants |
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Class Of Stock [Line Items] |
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Issued warrants to underwriters |
2,655,000
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Warrants exercise price | $ / shares |
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$ 0.01
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$ 0.01
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Issued warrants to underwriters |
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2,655,000
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2,655,000
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Warrants exercised for cash | $ |
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$ 26,550,000
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2020 Investor Warrant [Member] |
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Class Of Stock [Line Items] |
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Issued warrants to underwriters |
7,762,500
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Common stock, shares issued |
800,000
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Warrants To Purchase Common Stock1 |
1,012,500
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Underwriting discounts and commissions amount | $ |
$ 6,582,966,000
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Expiry date |
Aug. 16, 2024
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Placement Agent | Series C Agent Warrants [Member] |
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Class Of Stock [Line Items] |
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Fair value disclosure | $ |
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$ 3,300,000
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$ 3,300,000
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Warrants outstanding, term |
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4 years
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4 years
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Director | 2017 Omnibus Incentive Plan [Member] |
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Class Of Stock [Line Items] |
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Total compensation expense | $ |
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$ 319,376,000
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Subject to Stockholder Approval | 2017 Omnibus Incentive Plan [Member] | Group Two |
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Class Of Stock [Line Items] |
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Stock options exercisable |
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250,000
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250,000
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Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member] |
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Class Of Stock [Line Items] |
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Number of options granted |
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4,758,687,000
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Number of options expected to vest |
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4,278,687,000
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4,278,687,000
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Stock option vesting description |
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Of the total granted, 4,278,687 stock options vest as to 1/6 on the six-month anniversary of the grant date with the remaining portion vesting in equal monthly installments over a period of 30 months commencing on the seven-month anniversary of the grant date. Of the total stock options granted to executive officers and directors, 480,000 vest in 12 equal monthly installments beginning on October 15, 2020. All of the stock options granted have a 10-year term and are subject to cancellation upon the grantees’ termination of service for the Company, with certain exceptions
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Stock option term |
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10 years
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Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member] | Exercise Price of 1.70 |
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Class Of Stock [Line Items] |
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Number of options granted |
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4,698,687,000
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Stock option exercise price | $ / shares |
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$ 1.70
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Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member] | Exercise Price of 1.355 |
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Class Of Stock [Line Items] |
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Stock option exercise price | $ / shares |
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$ 1.355
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Number of options forfeited |
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60,000,000
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Minimum | Director | 2017 Omnibus Incentive Plan [Member] |
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Class Of Stock [Line Items] |
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Exercise period |
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90 days
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Maximum | Director | 2017 Omnibus Incentive Plan [Member] |
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Class Of Stock [Line Items] |
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Exercise period |
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1 year
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Measurement Input, Risk Free Interest Rate | Placement Agent | Series C Agent Warrants [Member] |
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Class Of Stock [Line Items] |
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Warrants outstanding, measurement input |
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0.27
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0.27
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Measurement Input, Price Volatility | Minimum | Placement Agent | Series C Agent Warrants [Member] |
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Class Of Stock [Line Items] |
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Warrants outstanding, measurement input |
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95.2
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95.2
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Measurement Input, Price Volatility | Maximum | Placement Agent | Series C Agent Warrants [Member] |
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Class Of Stock [Line Items] |
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Warrants outstanding, measurement input |
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95.8
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95.8
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Preferred Stock Series C |
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Class Of Stock [Line Items] |
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Shares issued of common stock for services |
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25,028
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Issuance, shares |
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25,028
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Conversion of common stock, shares issued |
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21,516,484
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Deemed dividend recognized on beneficial conversion features of Series C Preferred stock issuance | $ |
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$ 3,180,000
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Liquidation value | $ |
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$ 23,670,000
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$ 23,670,000
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Deferred financing costs | $ |
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$ 84,944
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Preferred stock, shares outstanding |
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23,670
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23,670
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0
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Conversion of Series C preferred stock to common stock shares |
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20,348,764
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20,348,764
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0
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Preferred Stock, shares issued |
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24,000
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24,000
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0
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Preferred Stock Series C | Placement Agent | Series C Agent Warrants [Member] |
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Class Of Stock [Line Items] |
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Conversion of common stock, shares issued |
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2,152,701
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Shares issued of common stock for services |
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2,504
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Series C-1 Preferred Shares [Member] |
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Class Of Stock [Line Items] |
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Conversion price | $ / shares |
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$ 1.16
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$ 1.16
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Series C-2 Preferred Shares [Member] |
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Class Of Stock [Line Items] |
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Conversion price | $ / shares |
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1.214
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1.214
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Series C-3 Preferred Shares [Member] |
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Class Of Stock [Line Items] |
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Conversion price | $ / shares |
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$ 1.15
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$ 1.15
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Preferred Stock Series B |
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Class Of Stock [Line Items] |
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Conversion price | $ / shares |
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$ 32.00
|
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Liquidation value | $ |
|
|
$ 4,900,000
|
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|
$ 4,900,000
|
|
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|
$ 5,200,000
|
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|
Shares issued of common stock for services |
|
|
|
|
|
|
|
|
|
|
|
902,238
|
|
Preferred stock, shares outstanding |
|
|
610,238
|
|
|
|
610,238
|
|
|
|
648,613
|
|
|
Conversion of Series C preferred stock to common stock shares |
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|
|
|
|
|
|
|
|
|
|
0.25
|
|
Purchase price of shares | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 8.00
|
|
Bid price | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 80.00
|
|
Final closing date |
|
|
|
|
|
|
|
|
|
|
|
5 years
|
|
Conversion of preferred stock to common stock date |
|
|
|
|
|
|
|
|
|
|
|
Apr. 29, 2021
|
|
Preferred stock, rate of dividend |
|
|
|
|
|
|
|
|
|
|
|
9.00%
|
|
Direct increase in accumulated deficit | $ |
|
|
$ 4,453
|
|
$ 2,552
|
|
$ 9,633
|
$ 4,598
|
|
|
|
|
|
Conversion of Series B preferred stock to common stock, shares |
|
|
|
|
|
|
152,580
|
|
|
|
162,177
|
|
|
Preferred Stock, shares issued |
|
|
610,000
|
|
|
|
610,000
|
|
|
|
649,000
|
|
|
Common stock |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Series B preferred stock dividend, shares |
|
|
3,479
|
|
3,700
|
|
7,179
|
7,400
|
|
|
|
|
|
Preferred Stock Series A |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Liquidation value | $ |
|
|
$ 278,530
|
|
|
|
$ 278,530
|
|
|
|
$ 278,530
|
|
|
Preferred stock, shares outstanding |
|
|
279,000
|
|
|
|
279,000
|
|
|
|
279,000
|
|
|
Preferred stock, rate of dividend |
|
3.00%
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, shares issued |
|
|
279,000
|
|
|
|
279,000
|
|
|
|
279,000
|
|
|
Change in preferred stock | $ |
|
|
$ 0
|
|
$ 0
|
|
$ 0
|
$ 0
|
|
|
|
|
|
Preferred Stock Series A | Exchange Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock, rate of dividend |
|
3.00%
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, shares issued |
|
278,530
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock, par value | $ / shares |
|
$ 1.00
|
|
|
|
|
|
|
|
|
|
|
|
Private Placement [Member] | Preferred Stock Series C |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued of common stock for services |
|
|
|
|
|
|
25,028
|
|
|
|
|
|
|
Issuance, shares |
|
|
|
|
|
|
25,028
|
|
|
|
|
|
|
Cumulative dividends | $ |
|
|
$ 15,061,952
|
|
|
|
$ 15,061,952
|
|
|
|
|
|
|
Total gross proceeds | $ |
|
|
|
|
|
|
25,000,000
|
|
|
|
|
|
|
Net proceeds from private placement | $ |
|
|
|
|
|
|
21,600,000
|
|
|
|
|
|
|
Deferred financing costs | $ |
|
|
|
|
|
|
$ 3,400,000
|
|
|
|
|
|
|
Private Placement [Member] | Series C Preferred Stock Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued of common stock for services |
|
|
|
|
|
|
2,504
|
|
|
|
|
|
|
Shares issued, price per share | $ / shares |
|
|
$ 1,000
|
|
|
|
$ 1,000
|
|
|
|
|
|
|
Issuance, shares |
|
|
|
|
|
|
2,504
|
|
|
|
|
|
|
Underwriting Offering | 2020 Investor Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Warrants exercise price | $ / shares |
$ 1.15
|
|
|
|
|
|
|
|
|
|
|
|
|
Expiry date |
Aug. 14, 2022
|
|
|
|
|
|
|
|
|
|
|
|
|
Issued warrants to underwriters |
377,500,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Underwriter warrants commencing date |
Feb. 10, 2020
|
|
|
|
|
|
|
|
|
|
|
|
|
Merger Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividend rate |
|
|
|
|
|
|
0.00%
|
|
|
|
|
|
|
Merger Agreement [Member] | Private Placement [Member] | Preferred Stock Series C |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares issued of common stock for services |
|
|
|
|
|
|
25,028
|
|
|
|
|
|
|
Shares issued, price per share | $ / shares |
|
|
$ 1,000
|
|
|
|
$ 1,000
|
|
|
|
|
|
|
Issuance, shares |
|
|
|
|
|
|
25,028
|
|
|
|
|
|
|
Merger Agreement [Member] | Private Placement [Member] | Preferred Stock Series C | First Anniversary [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividend rate |
|
|
|
|
|
|
10.00%
|
|
|
|
|
|
|
Merger Agreement [Member] | Private Placement [Member] | Preferred Stock Series C | Second Anniversary [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividend rate |
|
|
|
|
|
|
15.00%
|
|
|
|
|
|
|
Merger Agreement [Member] | Private Placement [Member] | Preferred Stock Series C | Third Anniversary [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividend rate |
|
|
|
|
|
|
20.00%
|
|
|
|
|
|
|
Merger Agreement [Member] | Private Placement [Member] | Preferred Stock Series C | Fourth Anniversary [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividend rate |
|
|
|
|
|
|
25.00%
|
|
|
|
|
|
|