Statement of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Operating Activities
Earnings (loss)	$ (22,607)	$ 13,296	$ (8,711)
Earnings (loss) from discontinued operations	(19,475)	(6,194)	(128)
Earnings (loss) from continuing operations	(3,132)	19,490	(8,583)
Items not affecting cash
Depreciation and amortization	21,007	15,641	14,273
Amortization of Debt Issuance Costs	5,895	375	350
Acquisition accounting adjustment on inventory sold	4,000	0	0
Deferred income taxes	(4,038)	(3,489)	3,807
Stock-based compensation	4,366	3,906	2,770
Unrealized Gain (Loss) on Derivatives Instrument	143	176	1,976
Cost-method Investments, Other than Temporary Impairment	0	8,441	21,495
Gain (loss) on sale of assets	251	(1,386)	250
Fair Value Of Contingent Consideration	884	(1,373)	0
Other	739	27	(716)
Changes in non-cash working capital, net of business acquired	(3,685)	(24,318)	(6,542)
Net cash flows from operations - continuing operations	26,430	17,490	29,080
Net cash flows from operations - discontinued operations	4,814	7,325	972
Net Cash Provided by (Used in) Operating Activities, Total	31,244	24,815	30,052
Investing activities
Acquisition of businesses, net of cash acquired	(490,715)	0	(3,828)
Purchases of property, plant and equipment	(31,186)	(17,671)	(28,934)
Acquisition of non-controlling interest	(733)	0	0
Decrease in long-term investment, net	0	264	0
Payment of contingent consideration	(204)	(800)	(972)
Proceeds from disposal of assets	1,138	5,833	75
Increase in restricted cash	0	0	6,495
Other	(89)	(76)	(299)
Net cash flows from investing activities - continuing operations	(521,789)	(12,450)	(27,463)
Net cash flows from investing activities - discontinued operations	(1,235)	34,538	(5,538)
Net Cash Provided by (Used in) Investing Activities, Total	(523,024)	22,088	(33,001)
Financing activities
Increase (decrease) under line of credit facilities	85,968	(40,953)	3,618
Borrowings under long term debt	330,135	0	149
Repayment of long-term debt	(11,018)	(910)	(1,645)
Payment of debt issuance costs	(15,966)	(34)	(36)
Proceeds from issuance of common shares	94,080	0	0
Proceeds From Warrant Exercises	3,879	0	0
Proceeds From Stock Options Exercised	3,884	3,058	2,562
Other	(781)	244	(228)
Net cash flows from financing activities - continuing operations	490,181	(38,595)	4,420
Net cash flows from financing activities - discontinued operations	(4,304)	(7,066)	75
Net Cash Provided By (Used In) Financing Activities	485,877	(45,661)	4,495
Foreign exchange gain (loss) on cash held in a foreign currency	(54)	159	151
Increase (decrease) in cash and cash equivalents during the period	(5,957)	1,401	1,697
Discontinued operations cash activity included above:
Add: Balance included at beginning of period	2,170	4,084	3,966
Less: Balance included at end of period	1,707	2,170	4,084
Cash and cash equivalents - beginning of the period	7,768	4,453	2,874
Cash and cash equivalents - end of the period	2,274	7,768	4,453
Noncash Investing And Financing Items [Abstract]
Acquisition of business, working capital adjustment	82	0	0
Acquisition of business, settlement of pre-existing relationship	(749)	0	0
Acquistion of business, contingent consideration at fair value	$ (20,330)	$ 0	$ 0