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Commitments and Contingencies (Details) - USD ($)
Nov. 06, 2017
Sep. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Capital Leased Assets [Line Items]        
Debt issuance costs, gross     $ 125,000  
Capital Leased Assets, Gross   $ 798,000   $ 798,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation   (555,000)   (372,000)
Capital Leases, Balance Sheet, Assets by Major Class, Net   243,000   426,000
Computer and network equipment        
Capital Leased Assets [Line Items]        
Capital Leased Assets, Gross   511,000   511,000
Furniture        
Capital Leased Assets [Line Items]        
Capital Leased Assets, Gross   $ 287,000   $ 287,000
Subsequent Event        
Capital Leased Assets [Line Items]        
Debt issuance costs, gross $ 100,000