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EMPLOYEE BENEFIT PLANS (Detail Textuals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]      
Period of completion of services for qualification of defined contribution plan 90 days 90 days 90 days
Defined contribution plan, percentage of employer matching contribution 50.00% 50.00% 50.00%
Defined contribution plan, percentage of participant contributions 5.00% 5.00% 5.00%
Employee contributions vesting period five years five years five years
Defined contribution plan, employer contribution $ 917 $ 833 $ 697