Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
OPERATING ACTIVITIES
Net Earnings	$ 4,439	$ 5,026
Adjustments to reconcile Net Earnings to Net Cash Used in Operating Activities:
Depreciation	4,256	4,122
Amortization	112	520
Deferred Income Taxes	(509)	205
Share-Based Compensation Expense	2,637	2,707
Allowance for Doubtful Accounts and Returns	(94)	139
Loss on Sale of Business	62	0
Other, Net	60	(45)
Changes in Operating Assets and Liabilities:
Receivables	9,342	16,160
Inventories	(5,642)	(9,529)
Accounts Payable	(4,083)	(3,405)
Employee Compensation and Benefits	(9,163)	(8,895)
Other Current Liabilities	(6,502)	(5,761)
Income Taxes	379	(2,267)
Other Assets and Liabilities	(1,761)	(1,099)
Net Cash Used in Operating Activities	(6,467)	(2,122)
INVESTING ACTIVITIES
Purchases of Property, Plant and Equipment	(6,820)	(4,129)
Proceeds from Disposals of Property, Plant and Equipment	65	86
Proceeds from Sale of Business	285	0
Decrease (Increase) in Restricted Cash	121	(13)
Net Cash Used in Investing Activities	(6,349)	(4,056)
FINANCING ACTIVITIES
Payment of Long-Term Debt	(2,008)	(2,000)
Purchases of Common Stock	(7,052)	(4,135)
Proceeds from Issuance of Common Stock	504	550
Excess Tax Benefit on Stock Plans	134	648
Dividends Paid	(3,539)	(3,690)
Net Cash Used in Financing Activities	(11,961)	(8,627)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	391	(1,333)
Net Decrease in Cash and Cash Equivalents	(24,386)	(16,138)
Cash and Cash Equivalents at Beginning of Period	51,300	92,962
Cash and Cash Equivalents at End of Period	26,914	76,824
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Income Taxes	1,709	3,973
Cash Paid for Interest	264	338
Supplemental Non-cash Investing and Financing Activities:
Capital Expenditures in Accounts Payable	$ 1,685	$ 901