Consolidated Statement of Changes in Stockholders Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance at Jan. 02, 2010	$ 648	$ 107,262	$ 1,267	$ (45,874)		$ 63,303
Balance (in Shares) at Jan. 02, 2010	12,960,778
Issuance of stock under employee stock purchase plan (in Shares)	74,172
Issuance of stock under employee stock purchase plan	4	145				149
Translation adjustment			148			148
Issuance of stock under stock option plans	9	93				102
Issuance of stock under stock option plans (in Shares)	185,495
Stock based compensation expense		317				317
Common stock repurchase					(206)	(206)
Common stock repurchase (in Shares)					49,397
Net income				5,795		5,795
Balance at Jan. 01, 2011	661	107,817	1,415	(40,079)	(206)	69,608
Balance (in Shares) at Jan. 01, 2011	13,220,445				49,397
Issuance of stock under employee stock purchase plan (in Shares)	43,407
Issuance of stock under employee stock purchase plan	2	166				168
Translation adjustment			(109)			(109)
Issuance of stock under stock option plans	3	110				113
Issuance of stock under stock option plans (in Shares)	71,156
Stock based compensation expense		110				110
Common stock repurchase					(2,507)	(2,507)
Common stock repurchase (in Shares)					542,389
Net income				4,278		4,278
Balance at Dec. 31, 2011	$ 666	$ 108,203	$ 1,306	$ (35,801)	$ (2,713)	$ 71,661
Balance (in Shares) at Dec. 31, 2011	13,335,008				591,786