Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Narrative (Details)

v3.8.0.1
Stock-Based Compensation - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 15, 2018
Jul. 07, 2017
Jun. 19, 2017
Apr. 01, 2017
Feb. 15, 2017
Feb. 07, 2017
Aug. 04, 2015
Aug. 11, 2017
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Option and restricted stock unit vesting period (up to)                 3 years    
Stock based compensation                 $ 377,847 $ 292,334  
Compensation cost related to non vested awards not yet recognized                 $ 865,921    
Average remaining expense recognition period                 1 year 1 month    
Restricted Stock Units (RSUs) and Performance Restricted Stock Units (RSUs) | Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Option and restricted stock unit vesting period (up to)     3 years                
Equity instruments other than options, grants in period (in shares) 30,000   125,000       965,500        
Grants in period, weighted average grant date fair value (in usd per share) $ 0.87   $ 1.04       $ 3.03        
Issued in period (in shares)               294,152      
Issued in period, weighted average grant date fair value (in usd per share)               $ 1.00      
Restricted Stock Units (RSUs) and Performance Restricted Stock Units (RSUs) | Former NetSeer Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Option and restricted stock unit vesting period (up to)     3 years                
Equity instruments other than options, grants in period (in shares)     400,000                
Grants in period, weighted average grant date fair value (in usd per share)     $ 1.04                
Number of shares canceled (in shares)                     92,487
Restricted Stock Units- Service Based | Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Option and restricted stock unit vesting period (up to) 28 months           3 years        
Restricted Stock Units- Service Based | Employees | Vesting percentage, Year 1                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)             25.00%        
Restricted Stock Units- Service Based | Employees | Vesting percentage, Year 2                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)             25.00%        
Restricted Stock Units- Service Based | Employees | Vesting percentage, Year 3                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)             50.00%        
Restricted Stock Units- Performance Based | Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Option and restricted stock unit vesting period (up to) 2 years                    
Restricted Stock Units- Performance Based | Employees | Vesting percentage, Year 1                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)     33.33%       33.33%        
Restricted Stock Units- Performance Based | Employees | Vesting percentage, Year 2                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)     33.33%       33.33%        
Restricted Stock Units- Performance Based | Employees | Vesting percentage, Year 3                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)     33.33%       33.33%        
Restricted Stock Units- Performance Based | Former NetSeer Employees | Vesting percentage, Year 1                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)     33.33%                
Restricted Stock Units- Performance Based | Former NetSeer Employees | Vesting percentage, Year 2                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)     33.33%                
Restricted Stock Units- Performance Based | Former NetSeer Employees | Vesting percentage, Year 3                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting rights (as percent)     33.33%                
Restricted Stock Units | Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Option and restricted stock unit vesting period (up to) 3 years         3 years          
Equity instruments other than options, grants in period (in shares) 7,500 20,000     20,520 186,828          
Grants in period, weighted average grant date fair value (in usd per share) $ 0.87 $ 1.02     $ 1.62 $ 1.65          
Restricted Stock Units | Board of Directors                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Equity instruments other than options, grants in period (in shares)       116,280              
Grants in period, weighted average grant date fair value (in usd per share)       $ 1.29