CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Jun. 30, 2011
ASSETS
Cash and cash equivalents	$ 175,260	$ 191,206
Accounts receivable	1,430	4,668
Unbilled revenue	1,284	1,488
Inventory	931	480
Restricted cash	319	1,019
Prepaid and other current assets	2,588	2,664
Total current assets	181,812	201,525
Property and equipment, net of accumulated depreciation	11,751	13,409
Long-term restricted cash	2,549	2,549
Other assets	216	158
Total assets	196,328	217,641
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	2,635	3,213
Accrued compensation	4,113	4,723
Other accrued liabilities	3,874	3,305
Current portion of deferred lease incentive	979	979
Current portion of deferred revenue	3,197	2,346
Total current liabilities	14,798	14,566
Deferred lease incentive, net of current portion	6,850	7,583
Deferred revenue, net of current portion	69,914	51,545
Other long-term liabilities	3,836	3,978
Total liabilities	95,398	77,672
Commitments and contingencies (Note E)
Shareholders' equity:
Preferred stock, $.01 par value; authorized 5,000 shares; no shares issued and outstanding
Common stock, $.01 par value; authorized 100,000 shares; issued and outstanding 77,190 and 76,281 shares as of March 31, 2012 and June 30, 2011, respectively	772	763
Additional paid-in capital	581,700	569,843
Accumulated deficit	(481,542)	(430,637)
Total shareholders' equity	100,930	139,969
Total liabilities and shareholders' equity	$ 196,328	$ 217,641