CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss)/Income [Member]	Noncontrolling Interest [Member]
Beginning balance at Jan. 03, 2015	$ 414,501	$ 44,166	$ 867	$ 374,929	$ (5,375)	$ (86)
Comprehensive income:
Net income (loss)	8,452			8,478		(26)
Other comprehensive (loss) (net of tax)	319				319
Change in ownership of noncontrolling interest				(462)		462
Cash dividends	(11,117)			(11,117)
Common shares – treasury:
Shares purchased	(5,294)	(104)	(5,190)
Shares issued under Members’ Stock Purchase Plan and stock awards	20,719	423	20,296
Ending balance at Apr. 04, 2015	427,580	44,485	15,973	371,828	(5,056)	350
Beginning balance at Jan. 02, 2016	477,299	44,158	4,407	433,575	(5,186)	345
Comprehensive income:
Net income (loss)	11,842			$ 11,843		$ (1)
Other comprehensive (loss) (net of tax)	(316)				(316)
Change in ownership of noncontrolling interest
Cash dividends	(11,759)			$ (11,759)
Common shares – treasury:
Shares purchased	(1,692)	(49)	(1,643)
Shares issued under Members’ Stock Purchase Plan and stock awards	13,191	266	12,925
Ending balance at Apr. 02, 2016	$ 488,565	$ 44,375	$ 15,689	$ 433,659	$ (5,502)	$ 344