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Stock-Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Feb. 28, 2020
Nov. 19, 2019
Sep. 30, 2019
Jan. 31, 2019
Sep. 07, 2018
Sep. 05, 2018
Mar. 31, 2020
Mar. 31, 2019
Sep. 30, 2019
Dec. 31, 2019
Oct. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted (in shares)             0        
Consideration received, cash   $ 600,000 $ 600,000                
Consideration received (in shares)   594,750 594,750                
Consideration received, warrants (in shares)   400,000 400,000                
Warrant exercise price (in dollars per share)   $ 15 $ 15                
Stock-based compensation (benefit) expense, net of forfeitures             $ 38,000 $ (242,000)      
Payroll tax expense             83,000 89,000      
Officer                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock-based compensation (benefit) expense, net of forfeitures             $ (200,000)        
Restricted Stock                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares unvested (in shares)             500,000     729,500  
Vesting of restricted stock awards, net of share settlements for tax withholdings (in shares)             94,110   79,231    
Weighted-average grant date fair value (in dollars per share)             $ 5.73     $ 5.23  
Restricted Stock | 2014 Restricted Stock Awards                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award requisite service period             10 years        
Unamortized compensation expense             $ 0        
Restricted Stock | 2014 Restricted Stock Awards | Former Officer                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares withheld for tax obligation (in shares) 41,677     36,269              
Vesting of restricted stock awards, net of share settlements for tax withholdings (in shares) 93,713     115,500              
Payroll tax expense             $ 100,000 100,000      
Restricted Stock | 2018 Restricted Stock Awards                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Shares unvested (in shares)             500,000        
Restricted Stock | 2018 Restricted Stock Awards | Former Chief Executive Officer                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unamortized compensation expense                   $ 600,000  
Shares granted (in shares)           350,000          
Shares withheld for tax obligation (in shares)           102,550          
Shares unvested (in shares)           247,450         247,450
Restricted Stock | Modified Restricted Stock Award                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unamortized compensation expense             $ 0.6        
Compensation expense (reversal of expense)               100,000      
Restricted Stock | PWSC Restricted Stock Award | Officer                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unamortized compensation expense             $ 600,000        
Shares granted (in shares)         1,000            
Shares unvested (in shares)             750        
Compensation expense (reversal of expense)             $ 100,000 $ 200,000   $ 0  
Weighted-average grant date fair value (in dollars per share)             $ 824.47        
Restricted Stock Units (RSUs) | 2018 Restricted Stock Awards | Officer                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unamortized compensation expense             $ 1,500,000        
Shares granted (in shares)           500,000          
Partially Vested | Restricted Stock | 2014 Restricted Stock Awards | Former Officer                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting of restricted stock awards, net of share settlements for tax withholdings (in shares) 135,787