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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Sep. 30, 2012
Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (3,995) $ (4,493)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 130 97
Capital loss      
Stock-based compensation to employees, directors and non-employees consultants 1,063 1,041
Stock compensation to investor relations consultants 273 1
Increase in other accounts receivable (746) (76)
Increase in prepaid expenses (483) (20)
Decrease (increase) in trade payables 988 (87)
Increase in other accounts payable and accrued expenses 30 205
Increase (decrease) in deferred revenues (195) 4,846
Increase (decrease) in advance payment from United Therapeutics (617) 2,000
Linkage differences and Increase (decrease) interest on short and long-term deposit and restricted lease deposit (37) 55
Accretion of discount, amortization of premium and changes in accrued interest from marketable securities 43 4
Loss (gain) from sale of investments of available for sale marketable securities 15   
Accrued severance pay, net 9 (1)
Net cash used in (provided by) operating activities (3,522) 3,461
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchase of property and equipment (1,978) (179)
Investment in short-term deposits    (31,599)
Repayment (Investment) in long-term deposits 300 (690)
Repayment of long-term restricted deposit 3 4
Proceeds from sale and redemption of available for sale marketable securities 313   
Investment in available for sale marketable securities (1,248) (516)
Net cash used in investing activities (2,610) (32,980)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Issuance of common stock and warrants, net of issuance costs 34,106   
Exercise of warrants and options 1,388 323
Net cash provided by financing activities 35,494 323
Increase (decrease) in cash and cash equivalents 29,362 (29,196)
Cash and cash equivalents at the beginning of the period 9,389 42,829
Cash and cash equivalents at the end of the period 38,751 13,633
(a) Supplemental disclosure of cash flow activities:    
Taxes paid due to non-deductible expenses 3 8
(b) Supplemental disclosure of non-cash activities:    
Purchase of property and equipment on credit 78 109
Stock based compensation to contractor $ 1,400