SHORT-TERM AND LONG-TERM DEBT (Details) (USD $)				12 Months Ended						12 Months Ended				12 Months Ended
	Mar. 07, 2011 Through July 13, 2012	Jul. 12, 2012 July 13, 2012 to May 01, 2014	Dec. 26, 2013 December 31, 2013 to February 14, 2014	Dec. 31, 2013 Revolving credit facility	Feb. 14, 2014 Revolving credit facility	Jan. 02, 2014 Revolving credit facility	Aug. 27, 2013 Revolving credit facility	Dec. 31, 2012 Revolving credit facility	Jul. 15, 2010 Revolving credit facility	Dec. 31, 2013 Revolving credit facility Minimum	Dec. 31, 2013 Revolving credit facility Maximum	Dec. 31, 2013 Revolving advances at 4.25% interest	Dec. 31, 2012 Revolving advances at 4.25% interest	Dec. 31, 2013 Advances at 4.75% interest
Short-Term Debt
Maximum borrowing capacity	$ 5,000,000	$ 5,000,000	$ 5,000,000			$ 5,000,000	$ 7,000,000		$ 5,000,000
Outstanding amount of borrowings				5,900,000	4,900,000			2,400,000
Interest rate (as a percent)				4.00%
Base rate of interest on debt				prime rate
Basis spread on variable interest rate (as a percent)				1.00%
Interest rate on revolving advances (as a percent)								4.25%				4.25%	4.25%	4.75%
Facility fee (as a percent)										0.30%	0.375%
Additional revolver amount										2,000,000
Additional basis spread on variable interest rate (as a percent)										0.50%
Fee on unused borrowing capacity														$ 0