Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 4,852	$ 4,988	$ (39,171)
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Impairment	0	0	1,425
Depreciation, amortization, and accretion expense	8,518	8,688	9,420
Stock-based compensation expense	4,439	4,209	7,756
Deferred income taxes	(24,080)	0	0
Cash proceeds from sale of investment	(307)	(4,800)	0
Provision adjustments related to doubtful accounts	245	119	(158)
Provision adjustments related to product warranty	2,114	2,914	(49)
Provision for losses on inventory purchase commitments	306	0	2,344
Loss from equity method investment	0	0	1,201
Change in fair value of financial instruments	(34)	(515)	69
Net (gain) loss on disposal of equipment	(100)	0	147
Flood-related loss	0	0	5,519
Non-cash insurance proceeds	0	(16,134)	(2,609)
Gain on sale of assets	0	(338)	(2,742)
Total non-cash adjustments	(8,899)	(5,857)	22,323
Changes in operating assets and liabilities:
Accounts receivable	(3,290)	(4,967)	(1,707)
Inventory	5,481	2,016	(9,807)
Other assets	2,879	5,370	(3,889)
Accounts payable	3,113	(14,032)	10,610
Accrued expenses and other current liabilities	(3,135)	(9,623)	6,639
Total change in operating assets and liabilities	5,048	(21,236)	1,846
Net cash provided by (used in) operating activities	1,001	(22,105)	(15,002)
Cash flows from investing activities:
Cash proceeds from sale of investment	307	0	0
Cash proceeds from sale of equity method investment	0	4,800
Purchase of equipment	(3,001)	(7,242)	(12,211)
Deposits on equipment orders	0	(3)	(351)
Flood-related insurance proceeds from equipment	0	5,373	2,609
Dividend from an unconsolidated affiliate	0	0	1,644
Proceeds from sale of assets	0	1,150	13,121
Decrease (increase) in restricted cash	(667)	(733)	462
Proceeds from disposal of property, plant and equipment	100	484	0
Net cash (used in) provided by investing activities	(3,261)	3,829	5,274
Cash flows from financing activities:
Net proceeds from borrowings from credit facilities	4,813	2,390	1,759
Proceeds from sale of common stock	0	21,189	0
Proceeds from stock plans	1,763	1,705	1,256
Net cash provided by financing activities	6,576	25,284	3,015
Effect of exchange rate changes on foreign currency	267	49	162
Net increase (decrease) in cash and cash equivalents	4,583	7,057	(6,551)
Cash and cash equivalents at beginning of period	16,104	9,047	15,598
Cash and cash equivalents at end of period	20,687	16,104	9,047
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid during the period for interest	429	704	514
Cash paid during the period for income taxes	0	15	1,644
NON-CASH INVESTING AND FINANCING ACTIVITIES
Acquisition of equipment under capital lease	0	0	4,411
Sale of assets to Suncore for current receivable	0	0	2,934
Forgiveness of capital lease and accounts payable	$ 0	$ 10,761	$ 0