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STOCK-BASED COMPENSATION - Transactions involving Marine Products stock options (Details 1) (Stock Options, USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at December 31, 2012	144,615
Granted
Exercised
Forfeited	(103,015)
Expired
Outstanding at March 31, 2013	41,600	144,615
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at December 31, 2012	$ 6.82
Granted
Exercised
Forfeited	$ 4.54
Expired
Outstanding at March 31,2013	$ 12.47	$ 6.82
Weighted Average Remaining Contractual Life in years	1.08 years	0.44 years
Aggregate Instrinsic Value, Outstanding at March 31,2013

X

- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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