Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities
Net loss	$ (6,693)	$ (38,511)
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation	49	56
Loss on fixed asset disposal		3
Cost of options issued to employees, directors and others as non-cash compensation	316	1,507
Amortization of debt discount related to convertible bonds	366	385
Change in derivative liability	(216)	(1,521)
Impairment of unproved oil and gas properties	314	30,906
Change in assets and liabilities, net:
Other deposits	83	260
Prepaid expenses and other	(50)	(27)
Governmental receivables	327	876
Other receivables	(69)	(20)
Lease obligation - current	239
Lease obligation - non current	450
Right of Use Lease Asset	(634)
Severance pay, net	(15)
Accounts payable	(173)	75
Asset retirement obligation	32	178
Accrued liabilities	(135)
Net cash used in operating activities	(5,809)	(5,833)
Cash flows from investing activities
Acquisition of property and equipment	(8)	(19)
Investment in unproved oil and gas properties	(6,601)	(15,931)
Net cash used in investing activities	(6,609)	(15,950)
Cash flows from financing activities
Payments related to capital lease	(11)	(9)
Proceeds from exercise of stock options	7	19
Proceeds from Rights Offering		3,038
Proceeds from issuance of stock and exercise of warrants	14,232	13,781
Net cash provided by financing activities	14,228	16,829
Net increase (decrease), in cash, cash equivalents and restricted cash	1,810	(4,954)
Cash, cash equivalents and restricted cash - beginning of period	4,125	9,079
Cash, cash equivalents and restricted cash - end of period	5,935	4,125
Non-cash investing and financing activities:
Cost of options capitalized to oil & gas properties	3	348
Unpaid investments in oil and gas properties	16	2,946
Convertible Bond interest paid in shares	327	331
Capitalized convertible bond interest attributed to oil and gas properties	313	331
10% Senior Convertible Bonds converted to shares	$ 3	$ 176