CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Dec. 31, 2011	Jan. 01, 2011
Common stock, par value (in dollars per share)	$ 0.005	$ 0.005
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares, issued	7,533,872	7,513,330
Common stock, shares, outstanding	7,093,872	7,073,330
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury stock, shares	440,000	440,000