CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net revenues:
Product revenues	$ 26,012	$ 26,285	$ 75,744	$ 74,879
Intellectual property revenues	1,139	133	4,082	2,019
Net revenues	27,151	26,418	79,826	76,898
Costs and expenses:
Cost of product revenues	12,254	11,666	33,909	34,010
Engineering, research and development	10,006	11,706	31,581	31,987
Selling, general and administrative	7,330	7,257	23,189	22,617
Amortization of intangible assets	88	80	267	266
Costs and expenses	29,678	30,709	88,946	88,880
Loss from operations	(2,527)	(4,291)	(9,120)	(11,982)
Other expense (income):
Interest expense, net	1,510	1,983	4,706	5,919
Gain on compound embedded derivative	0	0	0	(803)
Loss on extinguishment of debt	0	0	1,594	0
Other expense, net	18	31	111	5
Other expense, net	1,528	2,014	6,411	5,121
Loss before income tax expense (benefit)	(4,055)	(6,305)	(15,531)	(17,103)
Income tax expense (benefit)	333	129	59	(790)
Net loss	$ (4,388)	$ (6,434)	$ (15,590)	$ (16,313)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.07)	$ (0.17)	$ (0.27)	$ (0.47)
Weighted average common shares outstanding - basic and diluted	59,965	38,630	58,631	34,601