Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating activities:
Net earnings	$ 13,781	$ 11,854
Adjustments to reconcile net earnings to net cash provided by operations:
Depreciation	2,873	2,975
Amortization	4,066	3,256
Deferred income taxes	38	392
Noncurrent employee benefits	81	88
Stock-based compensation expense	374	307
Changes in:
Receivables	3,864	1,385
Inventories	1,284	7,437
Payables	4,291	4,517
Prepaid expenses and other assets	(428)	(609)
Other current liabilities	332	(1,064)
Total adjustments	16,775	18,684
Net cash provided by operations	30,556	30,538
Investing activities:
Property, plant and equipment expenditures	(1,759)	(1,942)
Net cash used for investing activities	(46,320)	(1,942)
Acquisitions, net of cash acquired	(44,561)
Financing activities:
Dividends paid	(5,239)	(4,938)
Proceeds from exercise of stock options	352	478
Repurchase of treasury stock		(2,467)
Issuance of treasury stock	42	55
Net cash used for financing activities	(4,845)	(6,872)
Effect of foreign exchange rates on cash	(262)	(219)
(Decrease) Increase in cash and cash equivalents	(20,871)	21,505
Cash and cash equivalents – beginning of period	72,273	48,871
Cash and cash equivalents – end of period	$ 51,402	$ 70,376