Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net earnings	$ 11,854	$ 10,824
Adjustments to reconcile net earnings to net cash provided by operations:
Depreciation	2,975	2,978
Amortization	3,256	3,264
Deferred income taxes	392	(1)
Noncurrent employee benefits	88	117
Stock-based compensation expense	307	265
Changes in:
Receivables	1,385	(1,943)
Inventories	7,437	166
Payables	4,517	4,540
Prepaid expenses and other current assets	(609)	(2,101)
Other liabilities	(1,064)	(294)
Total adjustments	18,684	6,991
Net cash provided by operations	30,538	17,815
Investing activities:
Property, plant and equipment expenditures	(1,942)	(2,160)
Net cash used for investing activities	(1,942)	(2,160)
Financing activities:
Net decrease in short-term debt		(7,000)
Payment of contingent acquisition consideration		(1,000)
Dividends paid	(4,938)	(4,357)
Proceeds from exercise of stock options	478	471
Repurchase of treasury stock	(2,467)	(1,873)
Issuance of treasury stock	55	52
Net cash used for financing activities	(6,872)	(13,707)
Effect of foreign exchange rates on cash	(219)	(1)
Increase in cash and cash equivalents	21,505	1,947
Cash and cash equivalents – beginning of period	48,871	13,086
Cash and cash equivalents – end of period	$ 70,376	$ 15,033