Quarterly report pursuant to Section 13 or 15(d)

Debt - Senior Secured Credit Facility (Details)

v3.8.0.1
Debt - Senior Secured Credit Facility (Details) - USD ($)
May 23, 2017
Dec. 31, 2017
Sep. 30, 2017
Sep. 20, 2017
Mar. 31, 2017
Sep. 28, 2016
Debt Instrument [Line Items]            
Short-term debt, net of debt issuance costs of $247 and $0, respectively   $ 1,653,000        
Indenture, minimum percentage of note holders for waiver 66.67%          
Credit Agreement            
Debt Instrument [Line Items]            
Gross amount   1,900,000        
Debt discount, short-term   247,000        
Short-term debt, net of debt issuance costs of $247 and $0, respectively   $ 1,653,000     $ 0  
Credit Agreement | Western Alliance Bank            
Debt Instrument [Line Items]            
Credit agreement, total facility amount $ 5,000,000          
Credit agreement, term 2 years          
Credit agreement, basis spread on variable rate 1.25%          
Credit agreement, current interest rate 5.25%          
Credit agreement, interest rate floor 4.00%          
Credit agreement, annual facility fee $ 45,500          
Credit agreement, early termination fee 0.50%          
Credit agreement, collateral, partial pledges 65.00%          
Current ratio, minimum 65.00%          
Minimum revenue compared to projections 85.00%          
Note holders subject to subordination agreement, minimum 66.67%          
Convertible notes            
Debt Instrument [Line Items]            
Convertible debt conversion price (in dollars per share)   $ 1.364 $ 1.364 $ 1.364   $ 1.364
Gross amount           $ 11,084,000