Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Jul. 02, 2016	Jan. 02, 2016
Preferred stock par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.05	$ 0.05
Common stock, authorized (in shares)	40,000,000	40,000,000
Common stock, issued (in shares)	14,599,426	14,559,381
Common stock, outstanding (in shares)	12,322,102	12,496,635
Treasury stock shares (in shares)	2,277,324	2,062,746