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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Cash flows from operating activities:    
Net loss $ (5,159) $ (19,887)
Adjustments to reconcile net loss to cash flows from operating activities:    
Impairment of intangible assets   14,830
Amortization of intangible assets 386 1,652
Depreciation of property and equipment 111 68
Change in fair value of derivatives   (170)
Stock-based compensation expense 606 642
Amortization of bond premium on marketable securities 85 161
Deferred tax benefit   (13)
Changes in operating assets and liabilities:    
Accounts receivable and other current assets 310 38
Accounts payable and accrued expenses 284 (730)
Deferred revenue (26) (1,611)
Net cash used in operating activities (3,403) (5,020)
Cash flows from investing activities:    
Purchases of marketable securities (4,585) (6,915)
Maturities of marketable securities 8,138 6,599
Proceeds from sales of marketable securities   1,103
Purchases of property and equipment (36) (380)
Net cash provided by investing activities 3,517 407
Cash flows from financing activities:    
Proceeds from issuance of stock, net of issuance costs 4,669  
Exercise of stock options   114
Net cash provided by financing activities 4,669 114
Effect of foreign exchange rate changes on cash and cash equivalents 1 (5)
Net increase (decrease) in cash and cash equivalents 4,784 (4,504)
Cash and cash equivalents at beginning of period 4,625 12,912
Cash and cash equivalents at end of period 9,409 8,408
Supplemental disclosure of non-cash investing activities:    
Purchase of property and equipment $ 14