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Shareholders Equity and Accumulated Other Comprehensive Income - Shareholders' Equity (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Common Stock            
Beginning balance, value $ 386 $ 387 $ 387   $ 387  
Beginning balance, shares 38,654,889 38,685,189 38,693,589   38,693,589  
Purchase of shares for cancellation, value   $ (1)        
Purchase of shares for cancellation, shares   (30,300) (8,400)      
Issuance of shares - Acquisition, value $ 198          
Issuance of shares - Acquisition, shares 19,788,177          
Ending balance, value $ 584 $ 386 $ 387   $ 584  
Ending balance, shares 58,443,066 38,654,889 38,685,189   58,443,066  
Additional Paid-In Capital            
Beginning balance, value $ 55,763 $ 55,784 $ 55,790   $ 55,790  
Purchase of shares for cancellation, value   (21) (6)      
Issuance of shares - Acquisition, value 13,456          
Replacement options issued 164          
Stock option compensation 23          
Ending balance, value 69,406 55,763 55,784   69,406  
Retained Earnings / Accumulated Deficit            
Beginning balance, value (39,931) (39,414) (39,401)   (39,401)  
Net income loss 77 (517) (13)      
Ending balance, value (39,854) (39,931) (39,414)   (39,854)  
Other Comprehensive Income / Loss            
Beginning balance, value 863 619 712   712  
Net unrealized gain loss on marketable equity securities (126) 244 (93)      
Ending balance, value 737 863 619   737  
Beginning balance, value 17,081 17,376 17,488   17,488  
Purchase of shares for cancellation, value   (22) (6) $ 13 28 $ 214
Issuance of shares - Acquisition, value 13,654       13,654
Replacement options issued 164          
Stock option compensation 23          
Net income loss 77 (517) (13) $ (1,119) 453 $ 1,770
Net unrealized gain loss on marketable equity securities (126) 244 (93)      
Ending balance, value $ 30,873 $ 17,081 $ 17,376   $ 30,873