Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net loss	$ (3,483)	$ (7,492)
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation	25	31
Loss on fixed asset disposal		3
Cost of options issued to employees, directors and others as non-cash compensation	40	1,253
Amortization of debt discount and interest related to convertible bonds	300	258
Change in derivative liability	(82)	2,566
Impairment of unproved oil and gas properties	228
Change in assets and liabilities, net:
Other deposits	270	203
Prepaid expenses and other	138	109
Governmental receivables	342	669
Lease obligation - current	216
Lease obligation - non current	516
Right of Use Lease Assets	(685)
Other receivables	28	(21)
Severance pay	(3)	7
Accounts payable	(79)	(123)
Asset retirement obligation	(29)
Accrued liabilities	(158)	212
Net cash used in operating activities	(2,416)	(2,325)
Cash flows from investing activities
Acquisition of property and equipment	(3)	(10)
Investment in unproved oil and gas properties	(3,157)	(8,403)
Net cash used in investing activities	(3,160)	(8,413)
Cash flows from financing activities
Payments related to capital lease	(6)	(5)
Proceeds from exercise of stock options	1	18
Proceeds from Rights Offering		3,081
Proceeds from issuance of stock and exercise of warrants	5,636	5,953
Net cash provided by financing activities	5,631	9,047
Net (decrease), increase in cash, cash equivalents and restricted cash	55	(1,691)
Cash, cash equivalents and restricted cash - beginning of period	4,125	9,079
Cash, cash equivalents and restricted cash - end of period	4,180	7,388
Non-cash investing and financing activities:
Cost of options capitalized to oil & gas properties		328
Unpaid investments in oil & gas properties	136	3,388
Convertible Bond interest paid in shares	327	331
10% Senior Convertible Bonds converted to shares	2	168
Capitalized convertible bond interest attributed to oil and gas properties	$ 38	$ 156