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Equity Plans - Additional Information (Details) - USD ($)
3 Months Ended
Dec. 07, 2017
Sep. 30, 2020
Jun. 30, 2020
Sep. 11, 2014
Equity Plans        
Number of shares available for grant   394,663    
Outstanding stock options   1,467,441 1,599,541  
Market price of common stock   $ 6.33    
Intrinsic value of the outstanding stock options   $ 2,385,000    
Stock options        
Equity Plans        
Unrecognized compensation expense to be recorded on a straight-line basis   73,000    
Share-based compensation recognized in statements of operations   $ 9,558,000    
Time-based options        
Equity Plans        
Outstanding stock options   1,038,095    
Performance-based options        
Equity Plans        
Outstanding stock options   429,346    
Restricted Stock        
Equity Plans        
Unrecognized compensation expense to be recorded on a straight-line basis   $ 2,564,000    
Share-based compensation recognized in statements of operations   $ 6,412,000    
Restricted Stock | Maximum        
Equity Plans        
Remaining vesting period   2 years 11 months 8 days    
RSU        
Equity Plans        
Unrecognized compensation expense to be recorded on a straight-line basis   $ 301,000    
Share-based compensation recognized in statements of operations   $ 1,510,000    
RSU | Minimum        
Equity Plans        
Remaining vesting period   1 year 11 months 12 days    
Predecessor Plans | Maximum        
Equity Plans        
Shares reserved for issuance       2,500,000
2014 Plan        
Equity Plans        
Shares reserved for issuance 2,500,000     1,500,000
Increase in number of shares reserved for issuance 1,000,000