Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 8,893	$ 7,901
Non-cash items included in net earnings:
Depreciation of property, plant and equipment	896	927
Amortization of intangible assets	388	469
Amortization of deferred illumigene® instrument costs	281	395
Stock-based compensation	1,611	1,428
Deferred income taxes	433	100
Change in current assets	(1,186)	4,878
Change in current liabilities	834	246
Other, net	(58)	(259)
Net cash provided by operating activities	12,092	16,085
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(776)	(1,331)
Purchase of equity method investment	(600)
Purchases of intangible assets	(16)
Net cash used for investing activities	(1,392)	(1,331)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends paid	(8,407)	(8,330)
Proceeds and tax benefits from exercises of stock options	1,470	499
Net cash used for financing activities	(6,937)	(7,831)
Effect of Exchange Rate Changes on Cash and Equivalents	(314)	(454)
Net Increase in Cash and Equivalents	3,449	6,469
Cash and Equivalents at Beginning of Period	49,973	43,047
Cash and Equivalents at End of Period	$ 53,422	$ 49,516