Condensed Consolidated Statements of Operations and Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Revenue	$ 42,277	$ 37,780	$ 91,583	$ 75,231
Cost of revenue	34,444	32,404	72,802	66,387
Gross profit	7,833	5,376	18,781	8,844
Operating expense (income):
Selling, general, and administrative	6,771	8,365	13,675	15,845
Research and development	4,112	5,781	9,502	12,761
Flood-related loss	0	114	0	5,812
Flood-related insurance proceeds	(14,808)	0	(19,000)	(5,000)
Gain on sale of assets	(413)	0	(413)	0
Total operating (income) expense	(4,338)	14,260	3,764	29,418
Operating income (loss)	12,171	(8,884)	15,017	(20,574)
Other income (expense):
Interest expense, net	(186)	(121)	(424)	(250)
Foreign exchange (loss) gain	(21)	167	80	256
Loss from equity method investment	0	(241)	0	(1,201)
Change in fair value of financial instruments	(267)	(256)	(30)	(151)
Total other expense	(474)	(451)	(374)	(1,346)
Income (loss) before income tax expense	11,697	(9,335)	14,643	(21,920)
Income tax expense	0	0	(120)	(1,644)
Net income (loss)	11,697	(9,335)	14,523	(23,564)
Foreign exchange translation adjustment	(76)	24	(7)	425
Comprehensive income (loss)	$ 11,621	$ (9,311)	$ 14,516	$ (23,139)
Per share data:
Net loss per basic share (in dollars per share)	$ 0.44	$ (0.40)	$ 0.55	$ (1.00)
Net loss per diluted share (in dollars per share)	$ 0.44	$ (0.40)	$ 0.54	$ (1.00)
Weighted-average number of basic shares outstanding	26,310	23,529	26,142	23,577
Weighted-average number of diluted shares outstanding	26,642	23,529	26,432	23,577