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	122	$ 122	0	0	0	0
Employee Stock Purchase Plan, Shares		9
Exercise of options	1,494	$ 2,273	(779)	0	0	0
Exercise of options, shares		394
Exercise of Warrants, Value	812	$ 1,253	(441)	0	0	0
Exercise of Warrants, Shares		250
Stock based compensation	1,082	$ 0	1,082	0	0	0
Earnings (loss) from continuing operations	5,899	0	0	5,954	0	(55)
Earnings (loss) from discontinued operations	(1,081)	0	0	(720)	0	(361)
Currency translation adjustment	(4,437)	0	0	0	(4,138)	(299)
Change in fair value of interest rate swap, net of income taxes	(196)	0	0	0	(129)	(67)
Balance at Apr. 04, 2015	357,023	$ 194,316	22,352	134,543	(6,045)	11,857
Balance, shares at Apr. 04, 2015		67,727
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	96	$ 96	0	0	0	0
Employee Stock Purchase Plan, Shares		19
Exercise of options	16	$ 16	0	0	0	0
Exercise of options, shares		3
Stock based compensation	1,039	$ 0	1,039	0	0	0
Earnings (loss) from continuing operations	(9,279)	0	0	(9,663)	0	384
Earnings (loss) from discontinued operations	(834)	0	0	(570)	0	(264)
Currency translation adjustment	1,939	0	0	0	1,818	121
Balance at Apr. 02, 2016	$ 419,156	$ 298,099	$ 23,366	$ 96,605	$ (4,295)	$ 5,381
Balance, shares at Apr. 02, 2016		85,440