Quarterly report pursuant to Section 13 or 15(d)

Description of Business and Basis of Presentation (Details Textual)

v3.7.0.1
Description of Business and Basis of Presentation (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
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 $ 0 $ 3,311,000 $ 0 $ 3,311,000
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation $ 0 0 $ 0 0
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   3.3   3.3
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   $ 19,000   $ 38,000