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EMPLOYEE BENEFIT PLANS - Transactions involving Marine Products stock options (Details) (Stock Options, USD $)
12 Months Ended
Dec. 31, 2014
Stock Options
 
Shares  
Outstanding at January 1, 2014 41,600us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Granted   
Exercised   
Forfeited   
Expired (41,600)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Outstanding and exercisable at December 31, 2014   
Weighted Average Exercise Price  
Outstanding at January 1, 2014 $ 12.47us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Granted   
Exercised   
Forfeited   
Expired $ 12.47us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Outstanding and exercisable at December 31, 2014   
Weighted Average Remaining Contractual Life  
Outstanding 0.33 years
Aggregate Intrinsic Value