INCOME TAXES (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal									$ 416,000	$ (254,000)	$ 226,000
State									39,000	69,000	133,000
Foreign									30,000	43,000
Total current									485,000	(142,000)	359,000
Total provision (benefit) for income taxes	303,000	131,000	42,000	9,000	60,000	(240,000)	16,000	22,000	485,000	(142,000)	359,000
Deferred tax assets and liabilities:
Net operating loss carry-forwards	69,158,000				76,455,000				69,158,000	76,455,000
Temporary differences:
Accrued expenses	4,469,000				3,317,000				4,469,000	3,317,000
Reserves and other	7,464,000				5,705,000				7,464,000	5,705,000
Depreciation and amortization	(1,398,000)				(1,860,000)				(1,398,000)	(1,860,000)
Gross asset	79,693,000				83,617,000				79,693,000	83,617,000
Valuation allowance	(79,693,000)				(83,617,000)				(79,693,000)	(83,617,000)
U.S. federal net operating loss carry-forwards	174,100,000				192,500,000				174,100,000	192,500,000
State net operating loss carry-forwards	151,600,000				176,100,000				151,600,000	176,100,000
U.S. federal income tax rate
U.S. federal income tax rate (as a percent)									35.00%
Difference in income tax provision from amount computed by applying U.S. federal income tax rate to loss before income taxes
U.S. federal income tax provision (benefit) at statutory rate									5,303,000	(6,853,000)	4,940,000
State income tax expense, net of federal benefit									44,000	45,000	86,000
Stock based compensation expense									1,000	70,000	484,000
Other									(1,764,000)	30,000	73,000
Change in valuation allowance									(3,099,000)	6,566,000	(5,224,000)
Total provision (benefit) for income taxes	303,000	131,000	42,000	9,000	60,000	(240,000)	16,000	22,000	485,000	(142,000)	359,000
Reconciliation of beginning and ending tax contingencies, excluding interest and penalties
Beginning balance				231,000				191,000	231,000	191,000	112,000
Additions for tax positions taken in prior years										40,000	79,000
Ending balance	231,000				231,000				231,000	231,000	191,000
Interest and penalties accrued on tax contingencies	$ 97,000				$ 82,000				$ 97,000	$ 82,000
Minimum period of examinations and adjustments of net operating loss and credit carryforwards									3 years