CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net revenues:
Product revenues	$ 25,730	$ 31,856	$ 81,867	$ 103,855
Intellectual property revenues	4,557	4,132	8,148	6,772
Net revenues	30,287	35,988	90,015	110,627
Costs and expenses:
Cost of product revenues	11,270	13,432	34,028	40,776
Engineering, research and development	10,513	12,502	32,518	41,582
Selling, general and administrative	6,292	9,455	22,095	29,892
Restructuring and impairment charges	4	211	36	554
Amortization of intangible assets	88	62	234	288
Costs and expenses	28,167	35,662	88,911	113,092
Income (loss) from operations	2,120	326	1,104	(2,465)
Other (income) expense:
Interest expense, net	1,950	1,929	5,823	6,486
Gain on compound embedded derivative	(5,755)	(7,951)	(3,773)	(2,491)
Loss on extinguishment of debt	0	0	0	3,874
Other (income) expense, net	(20)	25	21	(33)
Other (income) expense, net	(3,825)	(5,997)	2,071	7,836
Income (loss) before income tax expense	5,945	6,323	(967)	(10,301)
Income tax expense (benefit)	1,234	(227)	1,363	(78)
Net income (loss)	$ 4,711	$ 6,550	$ (2,330)	$ (10,223)
Net income (loss) per common share - basic	$ 0.18	$ 0.26	$ (0.09)	$ (0.42)
Net income (loss) per common share - diluted	$ 0.16	$ 0.21	$ (0.09)	$ (0.42)
Weighted average common shares outstanding - basic (in shares)	25,302	24,447	24,951	24,266
Weighted average common shares outstanding - diluted (in shares)	38,413	37,543	24,951	24,266