Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands	9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net loss	$ (19,929)	$ (22,809)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	8,903	9,266
Stock-based compensation expense	5,572	8,228
Provision for doubtful accounts	63	1,957
Provision for product warranty	312	669
Loss from equity method investment	846	0
Change in fair value of financial instruments	(1,417)	(634)
Cost of financing instruments	0	322
Loss on disposal of equipment	0	89
Total non-cash adjustments	17,113	21,165
Changes in operating assets and liabilities:
Accounts receivable	2,371	(1,033)
Inventory	(398)	(2,262)
Other assets	(4,515)	(208)
Accounts payable	825	2,218
Accrued expenses and other current liabilities	2,064	(2,302)
Total change in operating assets and liabilities	347	(3,587)
Net cash used in operating activities	(2,469)	(5,231)
Cash flows from investing activities:
Purchase of equipment	(3,274)	(830)
Investment in patents	(475)	(524)
Proceeds from the sale of available-for-sale securities	0	150
Investments in an unconsolidated affiliate	(12,000)	0
Consulting fees received related to unconsolidated affiliate	5,500	0
Purchase of a business	(750)	0
Release (increase) of restricted cash	(928)	1,246
Net cash provided by (used in) investing activities	(11,927)	42
Cash flows from financing activities:
Net proceeds from borrowings from credit facilities	3,786	600
Proceeds from private placement transaction	9,653	0
Net payments on short-term debt	0	(163)
Net proceeds from equity line of credit	0	1,980
Proceeds from stock plans	874	990
Payments on capital lease obligations	(4)	0
Net cash provided by financing activities	14,309	3,407
Effect of foreign currency	(1,028)	2,158
Net increase (decrease) in cash and cash equivalents	(1,115)	376
Cash and cash equivalents at beginning of period	19,944	14,028
Cash and cash equivalents at end of period	18,829	14,404
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid during the period for interest	813	227
Cash paid during the period for income taxes	0	0
NON-CASH INVESTING AND FINANCING ACTIVITIES
Issuance of common stock under equity line of credit	0	228
Prior consulting fees received related to unconsolidated affiliate	$ 3,000	$ 0