Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Oct. 03, 2014	Jan. 03, 2014
Accounts receivable, allowance for contract losses and doubtful accounts	$ 3,241	$ 2,771
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	16,427	16,427
Treasury stock, shares	3,519	3,363