NOTES PAYABLE TO BANK (Credit Facility) (Details) (USD $)	12 Months Ended		12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended		3 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended		12 Months Ended			0 Months Ended		0 Months Ended	3 Months Ended		0 Months Ended	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Term Loan [Member]	Jul. 30, 2010 Term Loan [Member] installment	Jul. 30, 2010 Revolving Credit Facility [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]	Dec. 31, 2011 Revolving Credit Facility [Member]	Nov. 14, 2012 Revolving Credit Facility [Member] Fifth Amendment [Member]	Aug. 13, 2012 Revolving Credit Facility [Member] Fourth Amendment [Member]	Dec. 31, 2012 Revolving Credit Facility [Member] Fourth Amendment [Member]	Dec. 31, 2012 Revolving Credit Facility [Member] Fourth Amendment [Member]	Mar. 02, 2012 Revolving Credit Facility [Member] Third Amendment Member [Domain]	Dec. 31, 2012 Revolving Credit Facility [Member] Third Amendment Member [Domain]	Mar. 31, 2012 Revolving Credit Facility [Member] Third Amendment Member [Domain]	Dec. 31, 2012 Revolving Credit Facility [Member] Third Amendment Member [Domain]	Apr. 14, 2011 Revolving Credit Facility [Member] April Amendment [Member]	Nov. 16, 2011 Revolving Credit Facility [Member] November Amendment [Member]	Jul. 30, 2010 Revolving Credit Facility [Member] Original Credit Agreement [Member]	Dec. 31, 2012 Term Loan [Member] Fourth Amendment [Member]	Apr. 01, 2013 Subsequent Event [Member] Revolving Credit Facility [Member] Sixth Amendment [Member]	Mar. 31, 2013 Subsequent Event [Member] Revolving Credit Facility [Member] Sixth Amendment [Member]	May 31, 2013 Subsequent Event [Member] Revolving Credit Facility [Member] Sixth Amendment [Member]	Apr. 01, 2013 Subsequent Event [Member] Term Loan [Member] Sixth Amendment [Member]	Mar. 31, 2013 Subsequent Event [Member] Term Loan [Member] Sixth Amendment [Member]
Line of Credit Facility [Line Items]
Fixed charge coverage ratio, quarter ending March 31, 2013																				0.6
Fixed charge coverage ratio, quarter ending June 30, 2013																				1.20
Interest rate increase									0.0050											0.0175			0.0150	0.0150
Basis spread on variable rate			0.25%			3.25%														5.00%
Minimum liquidity covenant																					$ 3,000,000
Percent of eligible inventory																60.00%		60.00%		57.50%		55.00%
Maximum inventory amount that can be used in the calculation to determine borrowing base																18,000,000		17,000,000		12,500,000
Fee to Bank								25,000	25,000			10,000								40,000
Increase (decrease) in maximum revolving credit facility limit								(5,000,000)	(10,000,000)
Maximum revolving commitment						25,000,000	40,000,000	25,000,000	30,000,000							45,000,000	40,000,000	40,000,000
Senior leverage ratio, third quarter of 2012										4.75
Senior leverage ratio, fouth quarter of 2012															3.25
Fixed charge coverage ratio, third quarter of 2012										1.0								1.20
Fixed charge coverage ratio, fourth quarter of 2012									1.50
Credit facility, interest rate										3.50%	3.50%								3.75%
Original senior leverage ratio					3.50
Senior leverage ratio														4.25
Senior leverage ratio, second quarter of 2012													3.50
Change in unused borrowing percentage												0.25%
Unused borrowing percentage											0.75%				0.75%
Percent of eligible accounts																85.00%		85.00%
Eligible inventory, period from invoice date																		90 days
Face amount				8,800,000
Proceeds from credit facility																		33,400,000
Description of variable rate basis						one month LIBOR															one month LIBOR
Long-term Debt	25,056,000	28,509,000	5,800,000			18,450,000	20,083,000
Number of monthly installments				36
Principal and interest			125,000
Periodic payment, percentage of EBITDA			25.00%
Annual senior leverage ratio					4.0
Fixed charge coverage ratio					1.20
Limitations on capital expenditures					4,000,000
Debt ratio						8.02
EBITDA to cash payments ratio						0.44
Purchases of property and equipment	1,700,000
Payments to acquire property, plant, equipment and construction in progress, deposits on equipment	48,400
Remaining borrowing capacity						$ 6,500,000