CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
CURRENT ASSETS:
Cash and cash equivalents	$ 45,605	$ 27,001
Accounts receivable:
Trade	815	1,374
Other	3,154	3,837
Inventories	263	279
Total current assets	49,837	32,491
FUNDS IN RESPECT OF EMPLOYEE RIGHTS UPON RETIREMENT	1,120	1,043
PROPERTY AND EQUIPMENT, NET	17,507	18,271
Total assets	68,464	51,805
Accounts payable and accruals:
Trade	4,568	5,032
Other	8,298	7,540
Deferred revenues	4,858	6,121
Total current liabilities	17,724	18,693
LONG TERM LIABILITIES:
Deferred revenues	49,781	50,923
Long term liability	5,623	6,566
Liability for employee rights upon retirement	1,793	1,700
Total long term liabilities	57,197	59,189
Total liabilities	74,921	77,882
COMMITMENTS
CAPITAL DEFICIENCY	(6,457)	(26,077)
Total liabilities net of capital deficiency	$ 68,464	$ 51,805