CREDIT AGREEMENT (Detail Textuals) (Revolving credit facility, USD $)	9 Months Ended
	Sep. 30, 2012
Credit agreement, Due on October 10, 2015
Line of Credit Facility [Line Items]
Amount of borrowings	$ 40,000,000
Interest payable on outstanding borrowings	LIBOR plus 1.75
Sub-limit for trade and stand-by letters of credit	5,000,000
Minimum liquid assets	10,000,000
Credit agreement, Due on October 31, 2012
Line of Credit Facility [Line Items]
Amount of revolving loan	30,000,000
Interest payable on outstanding borrowings	LIBOR plus 2.25
Amount of outstanding borrowings	22,000,000
Outstanding letters of credit	$ 946,000