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11 - EMPLOYEE BENEFIT PLANS (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
11 - EMPLOYEE BENEFIT PLANS (Details) [Line Items]    
Defined Benefit Plan, Plan Assets, Contributions by Employer $ 28,000 $ 28,000
Common Class A [Member]    
11 - EMPLOYEE BENEFIT PLANS (Details) [Line Items]    
Defined Benefit Plan, Number of Shares of Equity Securities Issued by Employer and Related Parties Included in Plan Assets 929,203 929,203
Defined Benefit Plan, Actual Plan Asset Allocations 19.50% 19.50%