BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended				0 Months Ended		0 Months Ended
	Feb. 28, 2014	Mar. 30, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Apr. 12, 2013 Revolving Credit Facility	Mar. 30, 2014 Revolving Credit Facility	Apr. 12, 2013 Alternative Base Rate [Member] Federal Funds Effective Rate [Member] Revolving Credit Facility	Apr. 12, 2013 Alternative Base Rate [Member] Prime Rate [Member] Revolving Credit Facility
Accounting Policies [Line Items]
Cash and cash equivalents		$ 17,343,000	$ 10,811,000	$ 14,578,000	$ 14,354,000
Working capital		60,100,000
Credit Agreement, term						3 years
Credit Agreement, maximum borrowing capacity						25,000,000
Credit Agreement, borrowing base components, percentage of eligible accounts receivable and advance billings						80.00%
Credit Agreement, borrowing base components, percentage of eligible inventory minus reserves						30.00%
Credit Agreement, amount outstanding		0		14,000,000			0
Debt Instrument, Interest Rate During Period							4.75%
Debt Instrument, Basis Spread on Variable Rate								0.50%	1.50%
Stock Issued During Period, Shares, New Issues	14.1
StockOfferingPricePerShare	$ 2.45
Proceeds from issuance of common stock, net	$ 31,133,000	$ 31,126,000	$ 5,000