Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities:
Net earnings	$ 10,824	$ 7,546
Adjustments to reconcile net earnings to net cash provided by operations:
Depreciation	2,978	3,175
Amortization	3,264	3,537
Deferred income taxes	(1)	1
Noncurrent employee benefits	117	94
Stock-based compensation expense	265	471
Changes in:
Receivables	(1,943)	(4,919)
Inventories	166	265
Payables	4,540	(4,479)
Prepaid expenses and other current assets	(2,101)	(1,586)
Other liabilities	(294)	2,670
Total adjustments	6,991	(771)
Net cash provided by operations	17,815	6,775
Investing activities:
Property, plant and equipment expenditures	(2,160)	(3,043)
Net cash used for investing activities	(2,160)	(3,043)
Financing activities:
Net (decrease) increase in short-term debt	(7,000)	3,500
Payment of contingent acquisition consideration	(1,000)	0
Dividends paid	(4,357)	(3,770)
Proceeds from exercise of stock options	471	231
Repurchase of treasury stock	(1,873)	(1,619)
Issuance of treasury stock	52	65
Net cash used for financing activities	(13,707)	(1,593)
Effect of foreign exchange rates on cash	(1)	229
Increase in cash	1,947	2,368
Cash – beginning of period	13,086	11,164
Cash – end of period	$ 15,033	$ 13,532