Annual report pursuant to Section 13 and 15(d)

Income Taxes (Detail Textuals)

v3.8.0.1
Income Taxes (Detail Textuals) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Operating Loss Carryforwards [Line Items]    
Federal statutory tax rate 35.00%  
U.S. tax on certain off-shore earnings of effective tax rate 8.60% 0.70%
Territorial tax system beginning in 2018 by dividend received 100.00%  
Repatriation of foreign earnings & profits $ 1,900  
Net reduction of deferred tax assets and valuation allowance $ 2,900  
Future federal statutory tax rate 21.00%  
Reduction of deferred tax assets and valuation allowance $ 800  
Deferred tax assets, valuation allowance 11,561 $ 12,030
Provision (benefit) for income tax $ (600) $ (10,370)
Effective income tax rate (15.70%) (173.00%)
Retained earnings $ (31,979) $ (27,763)
Tax year 2017    
Operating Loss Carryforwards [Line Items]    
U.S. tax on certain off-shore earnings of effective tax rate 10.50%  
Tax year 2025    
Operating Loss Carryforwards [Line Items]    
U.S. tax on certain off-shore earnings of effective tax rate 13.125%  
Federal income tax    
Operating Loss Carryforwards [Line Items]    
Operating loss $ 19,100  
Federal income tax | Minimum    
Operating Loss Carryforwards [Line Items]    
Operating loss, expiration date Dec. 31, 2033  
Federal income tax | Maximum    
Operating Loss Carryforwards [Line Items]    
Operating loss, expiration date Dec. 31, 2037  
State income tax    
Operating Loss Carryforwards [Line Items]    
Operating loss $ 14,700  
State income tax | Minimum    
Operating Loss Carryforwards [Line Items]    
Operating loss, expiration date Dec. 31, 2033  
State income tax | Maximum    
Operating Loss Carryforwards [Line Items]    
Operating loss, expiration date Dec. 31, 2037  
Foreign subsidiaries    
Operating Loss Carryforwards [Line Items]    
Retained earnings $ 1,900