Annual report pursuant to Section 13 and 15(d)

Going Concern (Details Textual)

v3.8.0.1
Going Concern (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Apr. 30, 2018
Dec. 31, 2015
Net Income (Loss) Attributable to Parent, Total $ (25,707,000)       $ (28,243,000)    
Net Cash Provided by (Used in) Operating Activities, Continuing Operations 10,700,000            
Retained Earnings (Accumulated Deficit), Total (150,010,000)       (124,303,000)    
Cash and Cash Equivalents, at Carrying Value, Total 2,181,000       5,580,000   $ 26,080,000
Intangible Assets, Net (Including Goodwill) 23,700,000            
Gross Revenue 37,800,000 $ 33,800,000 $ 30,300,000 $ 27,200,000 $ 24,600,000    
Senior Secured Debt [Member]              
Debt Instrument, Debt Default, Amount $ 2,000,000         $ 2,000,000