Consolidated Statements of Equity (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Common Stock [Member]
Purchase of common stock	859,029	643,777
Additional Paid-in Capital [Member]
Stock options exercised, tax impact (in Dollars)	$ (2,009)	$ (1,807)	$ (521)
Treasury Stock [Member]
Shares withheld on restricted stock grants for withholding taxes	20,537	11,207
Retained Earnings [Member]
Cash dividends paid, per share (in Dollars per share)	$ 0.63	$ 0.15