BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended							0 Months Ended		0 Months Ended				12 Months Ended				1 Months Ended	3 Months Ended
	Dec. 31, 2013 adjustment	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Minimum	Dec. 31, 2013 Maximum	Dec. 31, 2013 Customer Concentration Risk [Member] Accounts Receivable [Member] customer	Dec. 31, 2012 Customer Concentration Risk [Member] Accounts Receivable [Member] customer	Apr. 12, 2013 Revolving Credit Facility [Member]	Dec. 31, 2013 Revolving Credit Facility [Member]	Apr. 12, 2013 Alternative Base Rate [Member] Federal Funds Effective Rate [Member] Revolving Credit Facility [Member]	Apr. 12, 2013 Alternative Base Rate [Member] Prime Rate [Member] Revolving Credit Facility [Member]	Apr. 12, 2013 Alternative Base Rate [Member] Prime Rate [Member] Revolving Credit Facility [Member] Minimum	Apr. 12, 2013 Alternative Base Rate [Member] Prime Rate [Member] Revolving Credit Facility [Member] Maximum	Dec. 31, 2013 Net Accounts Receivable, Major Customer D Customer Concentration Risk [Member] Accounts Receivable [Member]	Dec. 31, 2012 Net Accounts Receivable, Major Customer D Customer Concentration Risk [Member] Accounts Receivable [Member]	Dec. 31, 2013 Net Accounts Receivable, Major Customer E Customer Concentration Risk [Member] Accounts Receivable [Member]	Dec. 31, 2012 Net Accounts Receivable, Major Customer E Customer Concentration Risk [Member] Accounts Receivable [Member]	Feb. 28, 2014 Subsequent Event	Dec. 31, 2013 Physical Inventory Count [Member]	Dec. 31, 2013 Inventory Valuation and Obsolescence [Member]
Accounting Policies [Line Items]
Correcting adjustments of inventory	2
Adjustment Between Periods of Same Fiscal Year Relating to Inventory	$ 685,000
Adjustment Between Periods of Same Fiscal Year Relating to Inventory From Physical Count																				369,000
Adjustment Between Periods of Same Fiscal Year Relating to Inventory For Excess and Obsolete Inventory																					316,000
Cash, cash equivalents and restricted cash	16,700,000	16,700,000
Working capital	27,000,000	27,000,000
Revolving credit facility, term									3 years
Revolving credit facility, maximum borrowing capacity									25,000,000
Line of Credit Facility, Borrowing Base Components, Percentage of Eligible Accounts Receivable and Advance Billings									80.00%
Line of Credit Facility, Borrowing Base Components, Percentage of Eligible Inventory Minus Reserves									30.00%
Revolving credit facility, amount outstanding	14,000,000	14,000,000	0							14,000,000
Debt Instrument, Interest Rate, Effective Percentage										4.75%
Debt Instrument, Basis Spread on Variable Rate											0.50%	1.50%	0.25%	1.50%
Shares issued in connection with public offering, net, shares																			14,100
Stock offering price, per share																			$ 2.45
Proceeds from issuance of common stock, net		576,000	366,000	12,871,000															31,300,000
Number of Significant Customers							2	2
Percentage of net accounts receivable															61.00%	35.00%	23.00%	29.00%
Inventory Evaluation Tools Amortization Period		5 years
Inventory Amortization Expense		1,500,000	1,000,000	3,100,000
Property, Plant and Equipment, Useful Life					3 years	7 years
Depreciation		2,200,000	2,700,000	5,700,000
Impairment of Long-Lived Assets Held-for-use			200,000
Allocated Share-based Compensation Expense		1,433,000	1,565,000	2,304,000
Foreign Currency Transaction Gain, before Tax			400,000
Foreign Currency Transaction Loss, before Tax		600,000		700,000
Cumulative translation adjustment	$ 20,800,000	$ 20,800,000	$ 21,000,000