Annual report pursuant to Section 13 and 15(d)

Discontinued Operations (Details Textual)

v3.8.0.1
Discontinued Operations (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Aug. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax $ 1,696,000 $ 3,311,000  
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation 0 0  
Sales Revenue, Services, Other   100,000  
Amortization of Intangible Assets 4,700,000 3,500,000  
Disposal Group, Including Discontinued Operation, Consideration 3,600,000    
Disposal Group Including Discontinued Operation Maximum Amount To Be Received For Unsold Inventory 112,000    
Disposal Group Including Discontinued Operation Escrow Deposit Current 300,000    
Accrued Fees and Other Revenue Receivable     $ 200,000
Purchase Agreement [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax 1,700,000 3,300,000  
Selling, General and Administrative Expenses [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Amortization of Intangible Assets $ 185,000 $ 334,000