Note 7 - Debt (Details Textual) $ in Thousands, ¥ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 30, 2014 USD ($)	May. 31, 2013 USD ($)	Sep. 28, 2013	Jan. 02, 2016 USD ($)	Dec. 27, 2014 USD ($)	Dec. 28, 2013 USD ($)	Jan. 02, 2016 CNY (¥)	Dec. 27, 2014 CNY (¥)	Jun. 29, 2013 USD ($)	Jun. 29, 2013 CNY (¥)
JP Morgan Securities LLC [Member] | Unsecured Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 275,000	$ 225,000
Line of Credit Facility, Remaining Borrowing Capacity				$ 197,900
Debt Instrument, Basis Spread on Variable Rate				1.25%
Line of Credit Facility, Interest Rate at Period End				1.68%			1.68%
Debt Issuance Cost	100
Line Of Credit Facility Increase in Maximum Borrowing Capacity	$ 50,000
JP Morgan Securities LLC [Member]
Line of Credit Facility, Maximum Borrowing Capacity		325,000
Loans Payable to Bank		$ 100,000
Line of Credit Facility, Expiration Period		5 years
Hamlin Inc [Member]
Number of Credit Lines Assumed After Acquisition									3	3
Line of Credit Facility, Current Borrowing Capacity									$ 6,600	¥ 41.0
Number of Credit Lines Assumed After Acquisition That Expired During Period			2
Entrustment Loan Member
Debt Instrument, Interest Rate, Stated Percentage					5.25%			5.25%
Loans Payable to Bank				$ 85,000	$ 93,750
Debt Issuance Cost		$ 800
Letters of Credit Outstanding, Amount				100	800	$ 800
Entrusted Loan				9,474	17,908			¥ 110.0
Entrusted Loan, Total				9,500			¥ 61.5
Interest Paid				$ 4,100	$ 4,900	$ 2,900