Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Jan. 01, 2011
Consolidated Balance Sheets
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 644	$ 713
Property and equipment, accumulated depreciation (in dollars)	$ 7,535	$ 8,290
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized shares	24,000,000	24,000,000
Common stock, issued shares	5,032,759	4,985,874
Common stock, outstanding shares	5,032,759	4,985,874