Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.21.2
Stockholders' Equity - Additional Information (Detail)
1 Months Ended 9 Months Ended 12 Months Ended
Apr. 29, 2021
shares
Aug. 16, 2019
USD ($)
$ / shares
shares
Sep. 30, 2014
$ / shares
shares
Aug. 19, 2021
shares
Jun. 26, 2021
shares
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
$ / shares
shares
Jun. 30, 2016
$ / shares
shares
Jun. 25, 2021
shares
Jun. 30, 2019
shares
Jun. 26, 2019
shares
Class Of Stock [Line Items]                      
Preferred stock, par value | $ / shares           $ 0.001 $ 0.001        
Common stock shares authorized           175,000,000 95,000,000        
Underwritten Public Offering Description   the Company closed on the sale of (i) 4,895 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 shares of Common Stock and (iii) common warrants to purchase an aggregate of 7,763 shares of Common Stock (“2020 Investor Warrants”), including 800 shares of Common Stock and 2020 Investor Warrants to purchase an aggregate of 1,013 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.                  
Common stock, shares issued           32,740,000 11,458,000        
Warrants exercised for cash | $           $ 4,404,000 $ 51,000        
Shares issued for services | $           $ 0 $ 13,000        
Number of options granted           5,074 1,291        
Total compensation expense | $           $ 5,276,000 $ 495,000        
Stock options exercisable           2,532,000          
Accelerated vested of stock option           280,000          
Accelerated expense | $           $ 53,000          
Stock option exercise price | $ / shares           $ 0.61          
Number of stock options outstanding           6,392,000          
Stock options exercise price | $ / shares           $ 0.61          
2017 Omnibus Incentive Plan [Member]                      
Class Of Stock [Line Items]                      
Common stock, shares issued           13,000          
Common stock, shares outstanding           136          
Common stock issued under the 2017 Plan           6,256 6,414        
Percentage of fully diluted shares of common stock           8.00%          
2017 Omnibus Incentive Plan [Member]                      
Class Of Stock [Line Items]                      
Number of options granted       156,000 67,000 223,000          
Previous grants during the period           250,000          
2017 Omnibus Incentive Plan [Member] | Group Two                      
Class Of Stock [Line Items]                      
Stock options exercisable           250,000          
Stock options [Member]                      
Class Of Stock [Line Items]                      
Number of options granted           5,074,000 1,291,000        
Stock option exercise price | $ / shares           $ 0.61          
Number of options forfeited           14,000 19,000        
Stock options exercised, Shares           195,000          
Number of stock options outstanding           6,392,000 1,559,000     288,000  
Aggregate intrinsic value of stock options outstanding | $           $ 4,759 $ 80        
Aggregate intrinsic value of stock options exercisable | $           2,181 35        
Unrecognized compensation expense | $           $ 3,014,000          
Unrecognized compensation expense, term           2 years 3 months          
Aggregate intrinsic value of unvested stock options | $           $ 2,577 $ 45        
Weighted average contractual term           9 years 1 month 28 days 9 years 2 months 8 days        
Stock options [Member] | CA$ $20.00 Exercise Price                      
Class Of Stock [Line Items]                      
Stock option exercise price | $ / shares           $ 16.14          
Number of stock options outstanding           2.5          
Stock options exercise price | $ / shares           $ 16.14          
Common stock                      
Class Of Stock [Line Items]                      
Series B preferred stock dividend, shares           11,000 15,000        
Conversion of Series B preferred stock to common stock, shares           162,000 6,000        
Common stock shares authorized                 175,000,000   95,000,000
Issuance of shares and warrants - net of issue costs, shares   4,895,000         4,895,000        
Warrants exercise price | $ / shares   $ 0.001                  
Shares issued for services, shares           0 23,000        
Stock options exercised, Shares           170,000          
Pre-Funded Warrants                      
Class Of Stock [Line Items]                      
Issuance of shares and warrants - net of issue costs, shares   2,655,000                  
Warrants exercise price | $ / shares             $ 0.01        
Number             2,655,000        
Warrants exercised for cash | $             $ 27,000        
2020 Investor Warrant [Member]                      
Class Of Stock [Line Items]                      
Issuance of shares and warrants - net of issue costs, shares   7,763,000                  
Common stock, shares issued   800,000                  
Warrants To Purchase Common Stock   1,013,000                  
Other Underwriting Expense | $   $ 6,583,000                  
Expiry date   Aug. 16, 2024                  
Director | 2017 Omnibus Incentive Plan [Member]                      
Class Of Stock [Line Items]                      
Total compensation expense | $           $ 319,000          
Director | 2017 Omnibus Incentive Plan [Member] | Minimum                      
Class Of Stock [Line Items]                      
Exercise period           90 days          
Director | 2017 Omnibus Incentive Plan [Member] | Maximum                      
Class Of Stock [Line Items]                      
Exercise period           1 year          
Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member]                      
Class Of Stock [Line Items]                      
Number of options granted           4,834,000          
Number of options expected to vest           4,279,000          
Stock option vesting description           Of the total granted, 4,279 options to purchase shares of common stock 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, 480 vest in 12 equal monthly installments beginning on October 15, 2020, and 75 vest as to 1/6 on the twelve-month anniversary of the grant date with the remaining portion vesting in equal quarterly installments over a period of eight quarters commencing on the fifteen-month anniversary of the grant date.  All of the options to purchase shares of common stock granted have a 10-year term and are subject to cancellation upon the grantees’ termination of service for the Company, with certain exceptions.          
Stock option term           10 years          
Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member] | Exercise Price of 1.70                      
Class Of Stock [Line Items]                      
Number of options granted           4,699,000          
Stock option exercise price | $ / shares           $ 1.70          
Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member] | Exercise Price of 1.355                      
Class Of Stock [Line Items]                      
Stock option exercise price | $ / shares           $ 1.355          
Number of options forfeited           60,000          
Executive Officers and Directors | 2017 Omnibus Incentive Plan [Member] | Exercise Price of One Point Three Seven [Member]                      
Class Of Stock [Line Items]                      
Stock option exercise price | $ / shares           $ 1.37          
Stock options exercised, Shares           75,000          
Preferred Stock Series C                      
Class Of Stock [Line Items]                      
Shares issued of common stock for services           25,028          
Conversion of stock           21,516          
Preferred Stock, shares issued           20,000 0        
Preferred stock, shares outstanding           20,000 0        
Number           20,092,000          
Preferred Stock Series C | Placement Agent | Series C Agent Warrants [Member]                      
Class Of Stock [Line Items]                      
Stock issued during period shares new issues           2,504          
Fair value of preferred stock | $           $ 3,287,000          
Series C-1 Preferred Shares [Member]                      
Class Of Stock [Line Items]                      
Preferred stock | $ / shares           $ 1.16          
Number           16,564,000          
Series C-2 Preferred Shares [Member]                      
Class Of Stock [Line Items]                      
Preferred stock | $ / shares           $ 1.214          
Number           1,148,000          
Series C3 Preferred Shares                      
Class Of Stock [Line Items]                      
Preferred stock | $ / shares           $ 1.15          
Number           2,380,000          
Preferred Stock Series B                      
Class Of Stock [Line Items]                      
Stock issued during period shares new issues               902      
Preferred stock | $ / shares               $ 32.00      
Preferred stock, rate of dividend               9.00%      
Purchase price of shares | $ / shares               $ 8.00      
Convertible preferred stock           48 25 0.25      
Conversion Of Preferred Stock To Common Stock Date               Apr. 29, 2021      
Liquidation value | $             $ 5,189        
Conversion of Series B preferred stock to common stock, shares 150,000           162,000        
Direct increase in accumulated deficit | $           $ 17,000 $ 9,000        
Preferred Stock, shares issued 601,000         0 649,000        
Final closing date 5 years                    
Preferred stock, shares outstanding           0 649,000        
Common stock                      
Class Of Stock [Line Items]                      
Series B preferred stock dividend, shares           11 15        
Conversion of Series B preferred stock to common stock, shares           12 6        
Preferred Stock Series A                      
Class Of Stock [Line Items]                      
Preferred stock, rate of dividend     3.00%                
Liquidation value | $           $ 279,000          
Preferred Stock, shares issued           279,000 279,000        
Preferred stock, shares outstanding           279,000 279,000        
Change in preferred stock | $           $ 0 $ 0        
Preferred Stock Series A | Exchange Agreement                      
Class Of Stock [Line Items]                      
Preferred stock, rate of dividend     3.00%                
Preferred Stock, shares issued     279                
Preferred stock, par value | $ / shares     $ 1.00                
Series C Agent Warrants [Member] | Placement Agent                      
Class Of Stock [Line Items]                      
Fair value disclosure | $           $ 3,287,000          
Warrants outstanding, term           4 years          
Series C Agent Warrants [Member] | Placement Agent | Measurement Input, Risk Free Interest Rate                      
Class Of Stock [Line Items]                      
Warrants outstanding, measurement input           0.27          
Series C Agent Warrants [Member] | Placement Agent | Minimum | Measurement Input, Price Volatility                      
Class Of Stock [Line Items]                      
Warrants outstanding, measurement input           95.2          
Series C Agent Warrants [Member] | Placement Agent | Maximum | Measurement Input, Price Volatility                      
Class Of Stock [Line Items]                      
Warrants outstanding, measurement input           95.8          
Private Placement [Member] | Preferred Stock Series C                      
Class Of Stock [Line Items]                      
Shares issued of common stock for services           25,028          
Proceeds from private placement | $           $ 25,028,000          
Net proceeds from private placement | $           21,573,000          
Deferred financing costs | $           3,455,000          
Cumulative dividends | $           $ 15,062,000          
Private Placement [Member] | Series C Preferred Stock Warrants [Member]                      
Class Of Stock [Line Items]                      
Shares issued of common stock for services           2,504          
Shares issued, price per share | $ / shares           $ 1,000          
Series C3 Preferred Shares | Preferred Stock Series C                      
Class Of Stock [Line Items]                      
Deferred financing costs | $             $ 85,000        
Underwriting Offering | 2020 Investor Warrant [Member]                      
Class Of Stock [Line Items]                      
Warrants exercise price | $ / shares   $ 1.15                  
Expiry date   Aug. 14, 2022                  
Number   377,000                  
Warrants And Rights Outstanding Maturity 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          
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%