Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Oct. 02, 2011	Jan. 02, 2011
Condensed Consolidated Balance Sheets [Abstract]
Property and equipment, accumulated depreciation and amortization	$ 65,002	$ 61,313
Deferred charges, accumulated amortization	$ 976	$ 898
Common stock, par value	$ 0.05	$ 0.05
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	5,993,453	5,966,942
Common stock, shares outstanding	5,993,453	5,966,942
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0