INCOME TAXES (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current [Abstract]
Federal	$ 211,000	$ (235,000)	$ (148,000)
State	134,000	54,000	50,000
Total current	345,000	(181,000)	(98,000)
Deferred [Abstract]
Federal	(6,320,000)	18,000	17,000
State	(848,000)	0	0
Total deferred	(7,168,000)	18,000	17,000
Income tax credit and effective tax rates	(6,823,000)	(163,000)	(81,000)
Graduated federal statutory rate (in hundredths)	34.00%	34.00%	34.00%
Reconciliation of the differences related to continuing operations [Abstract]
Tax provision, at federal statutory income tax rate	7,232,000	2,824,000	389,000
State taxes, net of federal benefit	1,101,000	54,000	50,000
Deferred tax valuation allowance	(15,570,000)	(3,048,000)	(311,000)
Other	414,000	7,000	(209,000)
Income tax credit	(6,823,000)	(163,000)	(81,000)
Tax valuation allowance for deferred tax assets net of deferred tax liabilities not expected to be utilized	0	15,570,000	19,100,000
Increase (decrease) in valuation allowance	15,570,000	3,500,000	311,000
Net income	28,095,000	8,470,000	1,226,000
Gross deferred tax assets [Abstract]
Trade receivables allowance	107,000	302,000
Inventory capitalization	291,000	152,000
Accrued expenses	2,081,000	1,479,000
Deferred compensation	964,000	993,000
Non-compete agreements	6,000	23,000
Inventory reserves	428,000	259,000
AMT and other tax credit carry-forwards	896,000	456,000
Federal and State NOL carry-forwards	2,390,000	7,987,000
Share-based compensation	287,000	299,000
Depreciation expense	0	937,000
Pension liability	30,000	103,000
Intangibles	1,212,000	2,663,000
Valuation allowance	0	(15,570,000)	(19,100,000)
Gross deferred tax assets	8,692,000	83,000
Gross deferred tax liabilities [Abstract]
Indefinite-lived intangible assets	0	(1,344,000)
Prepaid expenses	(141,000)	(76,000)
Share-based compensation	0	(7,000)
Depreciation expense	(2,726,000)	0
Gross deferred tax liabilities	(2,867,000)	(1,427,000)
Net deferred tax assets (liabilities)	5,825,000	(1,344,000)
Deferred tax amounts reflected on the consolidated statements of financial position [Abstract]
Current and long-term deferred tax assets	5,825,000	0
Long-term deferred tax liabilities	0	(1,344,000)
Net deferred tax assets (liabilities)	5,825,000	(1,344,000)
Net operating loss carryforwards [Line Items]
Initial reversal of valuation allowance	6,600,000
Additional reversal of valuation allowance	200,000
Reversal of valuation allowance, total	6,800,000
Tax provision based on taxable income position	8,800,000
Unrealized excess benefits on stock-based compensation	3,700,000
Tax credit carryforwards [Line Items]
Unrecognized tax benefits	0
Federal or state income taxes paid	0	0	0
Federal [Member]
Net operating loss carryforwards [Line Items]
Net operating loss carryforwards	9,800,000
Net operating loss carryforwards, expiration dates	Will begin to expire in 2028
Tax credit carryforwards [Line Items]
Operating carryforward expiration period	Will begin to expire in 2028
Federal [Member] | Alternative Minimum Tax Credit Carryforward [Member]
Tax credit carryforwards [Line Items]
Tax credit carryforwards	700,000
State [Member]
Net operating loss carryforwards [Line Items]
Net operating loss carryforwards	12,600,000
Net operating loss carryforwards, expiration dates	Will expire in varying amounts between 2013 and 2029
Tax credit carryforwards [Line Items]
Operating carryforward expiration period	Will expire in varying amounts between 2013 and 2029
State [Member] | Manufacturing Credit Carryforwards [Member]
Tax credit carryforwards [Line Items]
Tax credit carryforwards	$ 100,000
Tax credit carryforwards, expiration date	Dec. 31, 2013