Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Apr. 03, 2021	Jan. 02, 2021
Accumulated depreciation	$ 111,521	$ 111,182
Preferred stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	136,401,000	136,236,000
Common stock, shares outstanding (in shares)	136,401,000	136,236,000