Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 27, 2014	Dec. 31, 2013
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	17,954,933	17,868,372
Common stock, shares outstanding	17,274,698	17,188,137
Treasury stock, shares	680,235	680,235