Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Royalties and license fees	$ 7,954	$ 7,275
Product sales	7,181	5,847
Research and development	1,406	1,083
Total revenue	16,541	14,205
Operating costs and expenses:
Product costs	2,366	1,902
Research and development	3,634	3,576
Selling, general and administrative	3,648	3,542
Acquisition transaction, integration and other costs	2,491
Intangible asset amortization	354	151
Contingent consideration accretion expense	109
Total operating costs and expenses	12,602	9,171
Operating income	3,939	5,034
Other (loss) income:
Investment income, net	1	57
Foreign exchange loss	(135)
Other loss, net		(7)
Other (loss) income, net	(134)	50
Income before income taxes	3,805	5,084
Income tax provision	(1,292)	(1,470)
Net income	$ 2,513	$ 3,614
Basic net income per share	$ 0.19	$ 0.27
Diluted net income per share	$ 0.19	$ 0.27
Weighted average number of shares outstanding:
Basic	12,966	13,225
Diluted	13,186	13,423