CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 43,029	$ 51,450	$ 41,353
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	17,295	17,595	16,466
Amortization of deferred financing cost	699	893	1,161
Increase (decrease) to allowance for doubtful accounts	(497)	641	(728)
Increase to inventory reserves	3,553	4,636	4,921
Amortization of deferred gain on sale of buildings	(1,048)	(1,048)	(1,048)
Equity loss from joint ventures	822	285	0
Employee Stock Ownership Plan allocation	1,826	4,376	3,865
Stock-based compensation	4,843	3,668	2,358
Excess tax benefits related to the exercise of employee stock grants	(1,269)	(1,264)	(343)
(Increase) decrease in deferred income taxes	(4,959)	(527)	6,098
Decrease in unrecognized tax benefit	(350)	0	0
Decrease in tax valuation allowance	(342)	(480)	(669)
Loss on discontinued operations, net of tax	9,870	1,593	1,616
Change in assets and liabilities:
(Increase) decrease in accounts receivable	1,755	(27,278)	15,393
(Increase) in inventories	(6,712)	(6,094)	(1,556)
(Increase) in prepaid expenses and other current assets	(959)	(4,048)	(659)
Increase (decrease) in accounts payable	(4,329)	12,497	3,287
Increase (decrease) in sundry payables and accrued expenses	(7,697)	8,673	6,837
Net changes in other assets and liabilities	(8,543)	(7,952)	(4,792)
Net cash provided by operating activities	46,987	57,616	93,560
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of and investments in businesses	(37,726)	(12,760)	(38,594)
Capital expenditures	(13,904)	(11,410)	(11,811)
Other investing activities	430	(592)	493
Net cash used in investing activities	(51,200)	(24,762)	(49,912)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (repayments) under line-of-credit agreements	35,152	(19,046)	(32,547)
Net borrowings (payments) of long-term debt and capital lease obligations	182	(120)	(105)
Purchase of treasury stock	(10,000)	(6,864)	(4,999)
Increase (decrease) in overdraft balances	522	(3,312)	2,387
Payments of debt issuance costs	0	(1,261)	0
Proceeds from exercise of employee stock options	96	151	349
Excess tax benefits related to the exercise of employee stock grants	1,269	1,264	343
Dividends paid	(11,905)	(10,107)	(8,215)
Net cash provided by (used in) financing activities	15,316	(39,295)	(42,787)
Effect of exchange rate changes on cash	(2,934)	(1,074)	1,342
Net increase (decrease) in cash and cash equivalents	8,169	(7,515)	2,203
CASH AND CASH EQUIVALENTS at beginning of year	5,559	13,074	10,871
CASH AND CASH EQUIVALENTS at end of year	13,728	5,559	13,074
Cash paid during the year for:
Interest	882	1,050	1,636
Income taxes	$ 27,562	$ 33,489	$ 16,087