CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 46,018	$ 43,029	$ 51,450
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	17,637	17,295	17,595
Amortization of deferred financing cost	635	699	893
Increase (decrease) to allowance for doubtful accounts	3,371	(497)	641
Increase to inventory reserves	1,864	3,553	4,636
Amortization of deferred gain on sale of buildings	(1,048)	(1,048)	(1,048)
Equity (income) loss from joint ventures	(976)	822	285
Employee Stock Ownership Plan allocation	2,208	1,826	4,376
Stock-based compensation	5,379	4,843	3,668
Excess tax benefits related to the exercise of employee stock grants	(1,254)	(1,269)	(1,264)
(Increase) decrease in deferred income taxes	(1,494)	(4,959)	(527)
Decrease in unrecognized tax benefit	0	(350)	0
Increase (decrease) in tax valuation allowance	87	(342)	(480)
Loss on discontinued operations, net of tax	2,102	9,870	1,593
Change in assets and liabilities:
(Increase) decrease in accounts receivable	(1,996)	1,755	(27,278)
Increase in inventories	(12,503)	(6,712)	(6,094)
(Increase) decrease in prepaid expenses and other current assets	367	(959)	(4,048)
Increase (decrease) in accounts payable	1,882	(4,329)	12,497
Increase (decrease) in sundry payables and accrued expenses	1,874	(7,697)	8,673
Net changes in other assets and liabilities	1,018	(8,543)	(7,952)
Net cash provided by operating activities	65,171	46,987	57,616
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of and investments in businesses	0	(37,726)	(12,760)
Capital expenditures	(18,047)	(13,904)	(11,410)
Other investing activities	36	430	(592)
Net cash used in investing activities	(18,011)	(51,200)	(24,762)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (repayments) under line-of-credit agreements	(9,131)	35,152	(19,046)
Net borrowings (payments) of long-term debt and capital lease obligations	(170)	182	(120)
Purchase of treasury stock	(19,623)	(10,000)	(6,864)
Increase (decrease) in overdraft balances	851	522	(3,312)
Payments of debt issuance costs	(748)	0	(1,261)
Proceeds from exercise of employee stock options	109	96	151
Excess tax benefits related to the exercise of employee stock grants	1,254	1,269	1,264
Dividends paid	(13,697)	(11,905)	(10,107)
Net cash provided by (used in) financing activities	(41,155)	15,316	(39,295)
Effect of exchange rate changes on cash	(933)	(2,934)	(1,074)
Net increase (decrease) in cash and cash equivalents	5,072	8,169	(7,515)
CASH AND CASH EQUIVALENTS at beginning of year	13,728	5,559	13,074
CASH AND CASH EQUIVALENTS at end of year	18,800	13,728	5,559
Cash paid during the year for:
Interest	901	882	1,050
Income taxes	$ 27,513	$ 27,562	$ 33,489