Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.8.0.1
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 09, 2008
Mar. 16, 2018
Dec. 31, 2017
Dec. 31, 2016
Executives        
Related Party Transactions        
Cash surrender value of split-dollar life insurance policies     $ 15 $ 15
Corporate Joint Venture | China        
Related Party Transactions        
Payments for advance to affiliate     2,000  
Payments for advance to affiliate by co-venturer     $ 500  
Mr. Eugene Hughes | Retirement and Consulting Agreement        
Related Party Transactions        
Initial term of agreement 8 years      
Annual compensation for the first two years of service $ 200      
Specified service period for annual compensation 2 years      
Annual compensation for remainder of the initial term $ 100      
Corporate Joint Venture | China        
Related Party Transactions        
Debt instrument, term (in years)     1 year  
Interest rate, stated percentage     300.00%  
Subsequent Event | Corporate Joint Venture | China        
Related Party Transactions        
Payments for advance to affiliate by co-venturer   $ 2,000