RESTRUCTURING AND OTHER CHARGES - Textual (Details) (USD $)	3 Months Ended		9 Months Ended		25 Months Ended
	Sep. 28, 2014 facility	Sep. 29, 2013	Sep. 28, 2014 facility	Sep. 29, 2013	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring cost recorded to date	$ 300,000		$ 400,000		$ 10,500,000
Restructuring and other charges	301,000	1,000,000	412,000	3,662,000
Vacated leased facilities	2		2
Restructuring reserve, current	502,000		502,000		812,000
Accrued liabilities, current
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	500,000		500,000
Other liabilities, non current
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, noncurrent	34,000		34,000
Employee Severance Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	415,000	200,000	526,000	2,800,000
Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(114,000)	800,000	(114,000)	800,000
Former Chief Executive Officer | Employee Severance Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		$ 600,000