Note 10 - Common Stock Repurchases (Details) - Stock Repurchase Activities (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended						3 Months Ended
	Apr. 27, 2014	Feb. 23, 2014	Jan. 26, 2014	Dec. 29, 2013	Oct. 27, 2013	Sep. 29, 2013	Jun. 29, 2014	Mar. 30, 2014	Mar. 31, 2013
Stock Repurchase Activities [Abstract]
Balances, Total number of Shares Purchased							10,592	10,319	9,564
Balances, Average Price Paid Per Share (or Unit)							$ 9.46	$ 9.22	$ 9.22
Balances, Amount Paid for Purchase							$ 100,189	$ 97,189	$ 88,189
Repurchases, Total number of Shares Purchased	273	324	122	83	73	153
Repurchases, Average Price Paid Per Share (or Unit)	$ 10.98	$ 11.05	$ 11.61	$ 12.09	$ 13.63	$ 13.07
Repurchases, Amount Paid for Purchase	$ 3,000	$ 3,583	$ 1,417	$ 1,000	$ 1,001	$ 1,999	$ 3,000