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Stock-Based Compensation - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 07, 2017
Jun. 19, 2017
Apr. 01, 2017
Feb. 15, 2017
Feb. 07, 2017
Aug. 04, 2015
Aug. 11, 2017
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
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               $ 336,913 $ 315,596 $ 923,072 $ 1,002,044
Compensation cost related to non vested awards not yet recognized               $ 1,580,437   $ 1,580,437  
Average remaining expense recognition period                   1 year  
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 3 years                  
Equity instruments other than options, grants in period (in shares)   125,000       965,500          
Grants in period, weighted average grant date fair value (in usd per share)   $ 1.04       $ 3.03          
Award vesting rights (as percent) 33.33% 33.33%                  
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                  
Award vesting rights (as percent)   33.33%                  
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)           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 | 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 | 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 | 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            
Equity instruments other than options, grants in period (in shares) 20,000     20,520 186,828            
Grants in period, weighted average grant date fair value (in usd per share) $ 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