Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interest [Member]
Balance at Jan. 03, 2015	$ 353,328	$ 190,668	$ 22,490	$ 129,309	$ (1,778)	$ 12,639
Balance, shares at Jan. 03, 2015		67,074
Employee Stock Purchase Plan, Value	314	$ 314	0	0	0	0
Employee Stock Purchase Plan, Shares		22
Exercise of options	2,725	$ 4,165	(1,440)	0	0	0
Exercise of options, shares		648
Exercise of Warrants, Value	3,879	$ 6,042	(2,163)	0	0	0
Exercise of Warrants, Shares		850
Stock based compensation	2,239	$ 0	2,239	0	0	0
Earnings (loss) from continuing operations	10,728	0	0	10,750	0	(22)
Earnings (loss) from discontinued operations	(5,139)	0	0	(3,467)	0	(1,672)
Currency translation adjustment	(3,832)	0	0	0	(3,332)	(500)
Change in fair value of interest rate swap, net of income taxes	210	0	0	0	139	71
Minority Interest Decrease From Redemptions	(733)	0	(1,018)	0	0	285
Balance at Jul. 04, 2015	363,719	$ 201,189	20,108	136,592	(4,971)	10,801
Balance, shares at Jul. 04, 2015		68,594
Balance at Jan. 03, 2015	353,328	$ 190,668	22,490	129,309	(1,778)	12,639
Balance, shares at Jan. 03, 2015		67,074
Balance at Jan. 02, 2016	426,179	$ 297,987	22,327	106,838	(6,113)	5,140
Balance, shares at Jan. 02, 2016		85,418
Employee Stock Purchase Plan, Value	200	$ 200	0	0	0	0
Employee Stock Purchase Plan, Shares		50
Exercise of options	523	$ 941	(418)	0	0	0
Exercise of options, shares		143
Stock based compensation	1,992	$ 0	1,992	0	0	0
Earnings (loss) from continuing operations	(13,280)	0	0	(13,787)	0	507
Earnings (loss) from discontinued operations	(834)	0	0	(570)	0	(264)
Currency translation adjustment	(407)	0	0	0	(160)	(247)
Change in Equity Associated with Disposal of Discontinued Operation	(7,148)	0	0	0	(5,094)	(2,054)
Balance at Jul. 02, 2016	$ 407,225	$ 299,128	$ 23,901	$ 92,481	$ (11,367)	$ 3,082
Balance, shares at Jul. 02, 2016		85,611