Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Operating activities
Net income	$ 8,845	$ 3,113
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	19,127	19,424
Other	(485)	358
Changes in operating assets and liabilities:
Accounts receivable	(15,485)	(15,377)
Operating liabilities	2,547	5,414
Other, net	2,158	(830)
Adjustments to reconcile net income to cash provided by operating activities	7,862	8,989
Net cash provided by operating activities	16,707	12,102
Capital expenditures:
Equipment	(20,878)	(25,431)
Land and buildings	(212)	(175)
Purchases of businesses	0	(962)
Other	1,513	539
Net cash used in investing activities	(19,577)	(26,029)
Financing activities
Revolving credit facility proceeds, net	8,400	21,600
Purchase of common shares for treasury	(7,762)	(7,847)
Sale of common shares from treasury	5,437	4,972
Dividends	(1,242)	(1,189)
Other	(5,028)	(7,053)
Net cash (used in) provided by financing activities	(195)	10,483
Decrease in cash and cash equivalents	(3,065)	(3,444)
Cash and cash equivalents, beginning of period	10,267	12,017
Cash and cash equivalents, end of period	7,202	8,573
Supplemental cash flow information follows:
Interest paid	1,465	1,992
Income taxes paid	$ 4,799	$ 877