Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Narrative (Details)

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Commitments and Contingencies - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Jul. 19, 2018
Jan. 12, 2018
Sep. 30, 2019
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Oct. 21, 2016
Debt Disclosure [Abstract]              
Gain on contract termination       $ 21,000 $ 0    
Sublease income     $ 32,000 105,000      
Lease contract termination liability           $ 218,000  
Debt Instrument [Line Items]              
Credit agreement     $ 4,000,000 $ 4,000,000   $ 4,000,000  
Interest rate     9.00% 9.00%   9.50%  
ESW Holdings, Inc.              
Debt Instrument [Line Items]              
Credit agreement   $ 10,000,000          
Principal payment $ 6,000,000            
Variable rate   4.00%          
Debt, fair value     $ 3,800,000 $ 3,800,000      
Hale Capital, LLP              
Debt Instrument [Line Items]              
Credit agreement             $ 8,000,000
Prepayment fee   10.00%