Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Summary of Stock Options Outstanding and Exercisable (Detail)

v3.21.1
Stockholders' Equity - Summary of Stock Options Outstanding and Exercisable (Detail)
9 Months Ended
Mar. 31, 2021
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Number of stock options outstanding 6,453,000
Stock options exercisable 2,128,000
Exercise Price One [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 0.61
Number of stock options outstanding 941,000
Weighted average remaining contractual life (years) 8 years 5 months 4 days
Stock options exercisable 836,000
Exercise Price Two [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 0.74
Number of stock options outstanding 250,000
Weighted average remaining contractual life (years) 8 years 7 months 9 days
Stock options exercisable 42,000
Exercise Price Three [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 1.36
Number of stock options outstanding 300,000
Weighted average remaining contractual life (years) 9 years 5 months 23 days
Stock options exercisable 50,000
Exercise Price Four [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 1.70
Number of stock options outstanding 4,699,000
Weighted average remaining contractual life (years) 9 years 5 months 15 days
Stock options exercisable 943,000
Exercise Price Five [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 6.10
Number of stock options outstanding 30,000
Weighted average remaining contractual life (years) 7 years 7 months 6 days
Stock options exercisable 28,000
Exercise Price Six [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 7.00
Number of stock options outstanding 3,000
Weighted average remaining contractual life (years) 7 years 2 months 23 days
Stock options exercisable 3,000
Exercise Price Seven [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 8.70
Number of stock options outstanding 12,000
Weighted average remaining contractual life (years) 6 years 7 months 2 days
Stock options exercisable 12,000
Exercise Price Eight [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 9.83
Number of stock options outstanding 83,000
Weighted average remaining contractual life (years) 7 years 1 month 20 days
Stock options exercisable 79,000
Exercise Price Nine [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 10.60
Number of stock options outstanding 4,000
Weighted average remaining contractual life (years) 7 years 10 days
Stock options exercisable 4,000
Exercise Price Ten [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 11.70
Number of stock options outstanding 30,000
Weighted average remaining contractual life (years) 1 year 10 months 28 days
Stock options exercisable 30,000
Exercise Price Eleven [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 15.90
Number of stock options outstanding 3,000
Weighted average remaining contractual life (years) 1 year 2 months 1 day
Stock options exercisable 3,000
Exercise Price Twelve [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 20.00
Number of stock options outstanding 9,000
Weighted average remaining contractual life (years) 9 months 29 days
Stock options exercisable 9,000
Exercise Price Thirteen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 21.10
Number of stock options outstanding 14,000
Weighted average remaining contractual life (years) 6 years 3 months 7 days
Stock options exercisable 14,000
Exercise Price Fourteen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 29.60
Number of stock options outstanding 5,000
Weighted average remaining contractual life (years) 3 years 10 months 2 days
Stock options exercisable 5,000
Exercise Price Fifteen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 37.60
Number of stock options outstanding 5,000
Weighted average remaining contractual life (years) 4 years 10 months 9 days
Stock options exercisable 5,000
Exercise Price Sixteen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 41.00
Number of stock options outstanding 4,000
Weighted average remaining contractual life (years) 5 years 7 months 9 days
Stock options exercisable 4,000
Exercise Price Seventeen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 42.00
Number of stock options outstanding 33,000
Weighted average remaining contractual life (years) 2 years 4 months 13 days
Stock options exercisable 33,000
Exercise Price Eighteen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 44.80
Number of stock options outstanding 3,000
Weighted average remaining contractual life (years) 4 years 10 months 9 days
Stock options exercisable 3,000
Exercise Price Nineteen [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 49.50
Number of stock options outstanding 13,000
Weighted average remaining contractual life (years) 5 years 10 months 17 days
Stock options exercisable 13,000
Exercise Price Twenty [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 53.20
Number of stock options outstanding 8,000
Weighted average remaining contractual life (years) 5 years 1 month 6 days
Stock options exercisable 8,000
Exercise Price Twenty One [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 61.60
Number of stock options outstanding 1,000
Weighted average remaining contractual life (years) 2 years
Stock options exercisable 1,000
Exercise Price Twenty Two [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Exercisable price | $ / shares $ 92.00
Number of stock options outstanding 3,000
Weighted average remaining contractual life (years) 2 years 2 months 1 day
Stock options exercisable 3,000