Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 23,381	$ 19,028
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,282	3,628
Amortization of intangible assets	3,036	1,588
Stock-based compensation expense	2,460	924
Deferred compensation expense	247	231
Deferred income taxes	20	3,730
Gain on sale of fixed assets	(27)	(424)
Decrease in cash surrender value of life insurance	20	68
Deferred financing amortization	267	312
Change in operating assets and liabilities, net of business acquisitions:
Trade receivables	(15,175)	(14,311)
Inventories	(8,305)	(6,819)
Prepaid expenses and other	1,382	(914)
Accounts payable and accrued liabilities	11,852	14,704
Payments on deferred compensation obligations	(240)	(293)
Net cash provided by operating activities	23,200	21,452
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(4,184)	(5,214)
Proceeds from sale of property, equipment and facility	97	1,009
Business acquisitions	(62,620)	(16,544)
Other	(43)	(42)
Net cash used in investing activities	(66,750)	(20,791)
CASH FLOWS FROM FINANCING ACTIVITIES
Long-term debt borrowings, net	52,261	13,284
Payment of deferred financing costs	(93)	(100)
Stock repurchases under buyback program	(6,928)	(6,078)
Realization of excess tax benefit on stock-based compensation	1,071	2,363
Proceeds from exercise of stock options, including tax benefit	26	64
Payments on capital lease obligations	(109)	(118)
Net cash provided by financing activities	46,228	9,415
Increase in cash and cash equivalents	2,678	10,076
Cash and cash equivalents at beginning of year	34	434
Cash and cash equivalents at end of period	$ 2,712	$ 10,510