Annual report pursuant to Section 13 and 15(d)

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

v3.20.2
Stockholders' Equity - Summary of Stock Options Outstanding and Exercisable (Detail)
12 Months Ended
Jun. 30, 2020
$ / shares
shares
Class of Stock [Line Items]  
Number of stock options outstanding 1,559,199
Stock options exercisable 701,691
Exercise Price One [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 0.61
Number of stock options outstanding 1,022,266
Weighted average remaining contractual life (years) 9 years 2 months 4 days
Stock options exercisable 447,756
Exercise Price Two [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 0.74
Number of stock options outstanding 250,000
Weighted average remaining contractual life (years) 9 years 4 months 13 days
Exercise Price Three [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 6.10
Number of stock options outstanding 30,000
Weighted average remaining contractual life (years) 8 years 4 months 9 days
Stock options exercisable 25,278
Exercise Price Four [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 7.00
Number of stock options outstanding 5,451
Weighted average remaining contractual life (years) 7 years 11 months 23 days
Stock options exercisable 3,634
Exercise Price Five [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 8.70
Number of stock options outstanding 12,000
Weighted average remaining contractual life (years) 7 years 4 months 2 days
Stock options exercisable 12,000
Exercise Price Six [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 9.83
Number of stock options outstanding 83,647
Weighted average remaining contractual life (years) 7 years 10 months 20 days
Stock options exercisable 58,088
Exercise Price Seven [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 10.60
Number of stock options outstanding 3,600
Weighted average remaining contractual life (years) 7 years 9 months 14 days
Stock options exercisable 2,700
Exercise Price Eight [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 11.70
Number of stock options outstanding 30,000
Weighted average remaining contractual life (years) 2 years 7 months 28 days
Stock options exercisable 30,000
Exercise Price Nine [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 14.63
Number of stock options outstanding 2,500
Weighted average remaining contractual life (years) 1 year 11 months 1 day
Stock options exercisable 2,500
Exercise Price Ten [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 20.00
Number of stock options outstanding 13,125
Weighted average remaining contractual life (years) 1 year 3 months 7 days
Stock options exercisable 13,125
Exercise Price Eleven [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 21.10
Number of stock options outstanding 14,400
Weighted average remaining contractual life (years) 7 years 7 days
Stock options exercisable 14,400
Exercise Price Twelve [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 29.60
Number of stock options outstanding 4,500
Weighted average remaining contractual life (years) 4 years 7 months 6 days
Stock options exercisable 4,500
Exercise Price Thirteen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 37.60
Number of stock options outstanding 4,500
Weighted average remaining contractual life (years) 5 years 7 months 9 days
Stock options exercisable 4,500
Exercise Price Fourteen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 41.00
Number of stock options outstanding 4,000
Weighted average remaining contractual life (years) 6 years 4 months 9 days
Stock options exercisable 4,000
Exercise Price Fifteen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 42.00
Number of stock options outstanding 41,250
Weighted average remaining contractual life (years) 2 years 6 months 21 days
Stock options exercisable 41,250
Exercise Price Sixteen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 44.80
Number of stock options outstanding 3,000
Weighted average remaining contractual life (years) 5 years 7 months 9 days
Stock options exercisable 3,000
Exercise Price Seventeen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 49.50
Number of stock options outstanding 22,460
Weighted average remaining contractual life (years) 4 years 25 days
Stock options exercisable 22,460
Exercise Price Eighteen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 53.20
Number of stock options outstanding 8,000
Weighted average remaining contractual life (years) 5 years 10 months 6 days
Stock options exercisable 8,000
Exercise Price Nineteen [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 61.60
Number of stock options outstanding 1,500
Weighted average remaining contractual life (years) 2 years 9 months
Stock options exercisable 1,500
Exercise Price Twenty [Member]  
Class of Stock [Line Items]  
Exercisable price | $ / shares $ 92.00
Number of stock options outstanding 3,000
Weighted average remaining contractual life (years) 2 years 11 months 1 day
Stock options exercisable 3,000