CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013
ASSETS
Cash and cash equivalents	$ 178,088	$ 194,960
Accounts receivable	3,818
Unbilled revenue	1,904	2,121
Inventory	3,008	703
Restricted cash	319	319
Prepaid and other current assets	2,321	2,581
Total current assets	189,458	200,684
Property and equipment, net of accumulated depreciation	10,753	10,783
Long-term restricted cash	1,912	1,912
Other assets	400	217
Total assets	202,523	213,596
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	3,812	4,498
Accrued compensation	4,162	6,153
Other accrued liabilities	6,158	6,049
Current portion of deferred lease incentive	979	979
Current portion of deferred revenue	2,522	1,494
Total current liabilities	17,633	19,173
Deferred lease incentive, net of current portion	5,137	5,626
Deferred revenue, net of current portion	46,487	63,384
Other long-term liabilities	3,230	3,566
Total liabilities	72,487	91,749
Commitments and contingencies (Note E)
Shareholders' equity:
Preferred stock, $0.01 par value; authorized 5,000 shares; no shares issued and outstanding
Common stock, $0.01 par value; authorized 150,000 shares; issued and outstanding 85,629 and 84,725 shares as of December 31, 2013 and June 30, 2013, respectively	856	847
Additional paid-in capital	713,361	697,767
Accumulated deficit	(584,181)	(576,767)
Total shareholders' equity	130,036	121,847
Total liabilities and shareholders' equity	$ 202,523	$ 213,596