SHELF REGISTRATION STATEMENT (Details) - USD ($)	1 Months Ended	12 Months Ended
	Nov. 30, 2013	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013	Jul. 31, 2013
Shelf Registration Statement [Abstract]
Dollar amount of offerings (up to)					$ 40,000,000
Net proceeds from offering	$ 23,100,000
Underwriter's commission and other expenses	$ 2,200,000		$ (40,000)	$ 2,219,000
Aggregate amount of shares of common stock issued	8,740,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001	$ 0.001
Underwritten public offering price (in dollars per share)	$ 2.90	$ 1.13
Remaining balance on the shelf		$ 14,700,000