Note 7 - Debt (Details)	1 Months Ended	12 Months Ended					1 Months Ended	12 Months Ended			3 Months Ended				1 Months Ended
	Mar. 30, 2013 USD ($)	Dec. 27, 2014 USD ($)	Dec. 28, 2013 USD ($)	Dec. 29, 2012 USD ($)	Dec. 27, 2014 CNY	Dec. 27, 2014 Entrustment Loan [Member]	Jan. 30, 2014 Unsecured Revolving Credit Facility [Member] J.P. Morgan Securities LLC [Member] USD ($)	Dec. 27, 2014 Unsecured Revolving Credit Facility [Member] J.P. Morgan Securities LLC [Member] USD ($)	Jan. 29, 2014 Unsecured Revolving Credit Facility [Member] J.P. Morgan Securities LLC [Member] USD ($)	May 31, 2013 Unsecured Revolving Credit Facility [Member] J.P. Morgan Securities LLC [Member] USD ($)	Sep. 28, 2013 Hamlin, Inc. [Member]	Jun. 29, 2013 Hamlin, Inc. [Member] USD ($)	Jun. 29, 2013 Hamlin, Inc. [Member] CNY	Jun. 29, 2013 Hamlin, Inc. [Member] GBP (£)	May 31, 2013 J.P. Morgan Securities LLC [Member] USD ($)
Note 7 - Debt (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 275,000,000		$ 225,000,000	$ 225,000,000					$ 325,000,000
Loans Payable to Bank		93,750,000	98,750,000												100,000,000
Line of Credit Facility, Expiration Period															5 years
Line of Credit Facility, Remaining Borrowing Capacity								190,900,000
Debt Instrument, Basis Spread on Variable Rate								1.25%
Line of Credit Facility, Interest Rate at Period End								1.42%
Debt Issuance Cost	800,000						100,000
Line of Credit Facility, Increase in Maximum Borrowing Capacity							50,000,000
Number of Credit Lines Assumed After Acquisition												3	3	3
Line of Credit Facility, Current Borrowing Capacity												6,600,000	41,000,000
Number of Credit Lines Assumed After Acquisition That Expired During Period											2
Other Commitment												2,700,000		1,800,000
Letters of Credit Outstanding, Amount		800,000	800,000	800,000
Letters of Credit Facility, Amount Drawn		0
Entrusted Loan		17,908,000			110,000,000
Debt Instrument, Interest Rate, Stated Percentage						5.25%
Interest Paid		$ 4,900,000	$ 2,900,000	$ 1,700,000