Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net loss	$ (22,555)	$ (17,604)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,150	1,665
Share-based compensation expense	3,385	4,386
Changes in assets and liabilities:
Accounts receivable	(349)	1,301
Inventories	(59)	(225)
Prepaid expenses and other current assets	73	(100)
Other assets	(210)	(211)
Accounts payable	388	(913)
Accrued expenses	(364)	254
Deferred revenue	(1,214)	(1,207)
Net cash used in operating activities	(18,755)	(12,654)
Cash flows from investing activities:
Purchases of property, plant and equipment	(2,707)	(20,549)
Net cash used in investing activities	(2,707)	(20,549)
Cash flows from financing activities:
Proceeds from the issuance of long-term debt	9,885	15,872
Principal payments on long-term debt and capital lease obligations	(1,317)	(225)
Proceeds from the issuance of note payable		6,900
Principal payments on note payable		(6,900)
Proceeds from the issuance of common stock, net of issuance costs	33,764	33,431
Proceeds from the exercise of options to purchase common stock	656	2,848
Purchase of treasury stock	(40)
Increase in restricted cash		(2,400)
Net cash provided by financing activities	42,948	49,526
Effect of exchange rate changes on cash	(91)	2,060
Net increase in cash and cash equivalents	21,395	18,383
Cash and cash equivalents at beginning of period	17,910	20,750
Cash and cash equivalents at end of period	39,305	39,133
Supplemental disclosure of non-cash activities
Purchases of property, plant and equipment in accounts payable and accrued expenses	453	1,096
Purchases of property, plant and equipment pursuant to capital lease agreements	19	190
Purchases of property, plant and equipment through issuance of warrants		$ 1,621