Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 2,791	$ 6,892
Fixed short term bank deposits - restricted	1,325	1,197
Prepaid expenses and other	461	434
Other deposits	280	540
Governmental receivables	361	1,237
Other receivables	153	133
Total current assets	5,371	10,433
Unproved oil and gas properties, full cost method (see Note 4)	6,714	21,695
Property and equipment at cost
Net of accumulated depreciation of $455 and $453	156	196
Other assets
Fixed short term bank deposits - restricted	9	990
Assets held for severance benefits	271	234
Total other assets	280	1,224
Total assets	12,521	33,548
Current liabilities
Accounts payable	2,811	2,750
Asset retirement obligation (see Note 10B)	720	470
Derivative liability (see Note 8)	345	1,866
Accrued liabilities (see Note 5)	958	1,701
Total current liabilities	4,834	6,787
Long-term liabilities
10% Senior convertible bonds, net of unamortized deferred financing cost of $63 and $90 and unamortized debt discount of $993 and $1,267 at December 31, 2018 and 2017 respectively (see Note 7)	2,211	2,002
Obligation under capital lease, net of current maturities of $10 (see Note 7C)	30	39
Provision for severance pay	317	280
Total long-term liabilities	2,558	2,321
Total liabilities	7,392	9,108
Commitments and contingencies (see Note 10)
Stockholders' equity
Common stock, par value $.01; Authorized: 200,000,000 shares at December 31, 2018: Issued and outstanding: 66,405,180 and 55,888,399 shares at December 31, 2018 and 2017 respectively	664	559
Additional paid-in capital	203,580	184,485
Accumulated deficit	(199,115)	(160,604)
Total stockholders' equity	5,129	24,440
Total liabilities and stockholders' equity	$ 12,521	$ 33,548