Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Cash flows from operating activities:
Net income	$ 2,421	$ 1,062
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	1,464	1,481
Share-based compensation expense	80	119
Other	83	63
Changes in assets and liabilities:
Accounts and notes receivable	633	143
Income taxes receivable	177	297
Prepaid expenses and other current assets	(1,019)	(652)
Accounts payable	(988)	(1,122)
Accrued expenses and other current liabilities	(131)	(882)
Other, net	(304)	(362)
Net cash provided by operating activities	2,416	147
Cash flows from investing activities:
Purchase of property and equipment	(660)	(727)
Other investing activities	(73)	(106)
Net cash used in investing activities	(733)	(833)
Cash flows from financing activities:
Payments on debt and obligations under capital leases	(274)	(336)
Other financing activities	4	37
Net cash used in financing activities	(270)	(299)
Increase (decrease) in cash and cash equivalents	1,413	(985)
Cash and cash equivalents at beginning of period	7,917	8,602
Cash and cash equivalents at end of period	9,330	7,617
Supplemental disclosures of non-cash items:
Property and equipment obligations accrued at beginning of period	226	549
Property and equipment obligations accrued at end of period	$ 999	$ 238