Quarterly report pursuant to Section 13 or 15(d)

Equity Transactions - Narrative (Details)

v3.20.2
Equity Transactions - Narrative (Details)
Apr. 15, 2020
$ / shares
shares
Mar. 30, 2020
Apr. 14, 2020
shares
Mar. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
$ / shares
shares
Jun. 25, 2018
shares
Jan. 18, 2018
shares
Dec. 21, 2017
shares
Mar. 31, 2016
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Beneficial ownership percentage   20.00%              
Common stock, shares issued       3,989,188 3,837,920        
Common stock, par value (usd per share) | $ / shares       $ 0.0001 $ 0.0001        
Stock repurchase program, authorized amount | $                 $ 50,000,000.0
Stock repurchase program, remaining authorized amount | $       $ 44,800,000          
Twenty Thirteen Equity Incentive Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares available for grant (in shares)             282,812    
Number of shares authorized (in shares)             440,000    
Equity Incentive Plan, 2017                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares authorized (in shares)           80,000   260,000  
Employee Stock Option | Twenty Thirteen Equity Incentive Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares available for grant (in shares)               83,914  
Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Common stock, shares issued 3,717,797   92,944,935            
Common stock, par value (usd per share) | $ / shares $ 0.0001                
Maximum | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Reverse stock split, common stock ratio 0.04