Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 44,092	$ 53,081
Non-cash items included in net earnings:
Depreciation of property, plant and equipment	3,369	3,072
Amortization of intangible assets	4,966	4,363
Stock-based compensation	3,389	2,291
Deferred income taxes	1,446	(777)
Change in fair value of acquisition consideration	0	(1,942)
Change in the following:
Accounts receivable	(5,918)	(5,267)
Inventories	4,913	(12,185)
Prepaid expenses and other current assets	1,685	1,440
Accounts payable and accrued expenses	5,273	77
Income taxes payable	3,332	(2,698)
Other, net	(575)	36
Net cash provided by operating activities	65,972	41,491
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment	(3,179)	(11,955)
Payment of acquisition consideration holdback	0	(5,000)
Net cash used in investing activities	(3,179)	(16,955)
CASH FLOWS FROM FINANCING ACTIVITIES
Payment on revolving credit facility	(35,000)	(18,824)
Payment of deferred financing costs	(404)	0
Proceeds from exercise of stock options	735	2,852
Employee taxes paid upon stock swap option exercises and net share settlement of restricted share units	(801)	0
Net cash used in financing activities	(35,470)	(15,972)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(607)	1,296
Net Increase in Cash and Cash Equivalents	26,716	9,860
Cash and Cash Equivalents at Beginning of Period	49,771	53,514
Cash and Cash Equivalents at End of Period	$ 76,487	$ 63,374