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LINE OF CREDIT (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Line of Credit Facility, Maximum Amount Outstanding $ 9,000,000  
Line of Credit Facility, Expiration Date Aug. 01, 2014  
Debt Instrument, Interest Rate Terms The bank's prime rate minus 0.5 percentage point, or alternatively at the Company's discretion, the LIBOR rate plus 1.0 percentage point.  
Debt, Weighted Average Interest Rate 1.28%  
Long-term Line of Credit, Noncurrent $ 8,550,000 $ 7,850,000