Quarterly report pursuant to Section 13 or 15(d)

INTANGIBLE ASSETS AND DEFERRED CHARGES (Details)

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INTANGIBLE ASSETS AND DEFERRED CHARGES (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]    
Intangible assets, (excluding goodwill), including deferred charges $ 21,700 $ 20,708
Finite-lived intangible assets, including deferred charges accumulated amortization 9,491 $ 8,253
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
Remainder of 2017 1,265  
2018 2,339  
2019 2,156  
2020 1,997  
2021 1,899  
Thereafter $ 2,553