Annual report pursuant to Section 13 and 15(d)

Termination of Merger Agreement (Details Textual)

v3.8.0.1
Termination of Merger Agreement (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Oct. 27, 2017
Dec. 31, 2017
Dec. 31, 2016
Jan. 30, 2017
Oct. 05, 2016
Proceeds from bridge loan $ 1,000,000 $ 1,000,000 $ 0    
Long-term Debt, Gross   12,135,000 13,752,000    
Business Combination, Acquisition Related Costs   (365,000) 2,959,000    
Bridge Loan [Member]          
Long-term Debt, Gross         $ 1,400,000
Debt Instrument, Face Amount     $ 1,000,000 $ 400,000  
Allowance for Doubtful Accounts Receivable, Recoveries   365,000      
Business Combination, Acquisition Related Costs   $ 650,000