Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of deferred tax assets and liabilities

	December 31,  2019			December 31,  2018
	US$ thousands			US$ thousands
Deferred tax assets:
Net operating loss carry forwards		42,224			39,976
Other		2,531			2,520
Total gross deferred tax assets		44,755			42,496
Less – valuation allowance		(42,216	)		(40,825	)
Net deferred tax assets		2,539			1,671
Deferred tax liabilities:
Property and equipment		9			8
Other		(314	)		(269	)
Unproved oil and gas properties		(2,234	)		(1,410	)
Total gross deferred tax liabilities		(2,539	)		(1,671	)
Net deferred tax asset		—			—

Schedule of income tax reconciliation

	Year ended December 31, 2019			Year ended December 31, 2018
	US$  thousands			US$  thousands
Pre-tax loss as reported		(6,690	)		(38,511	)
U.S. statutory tax rate		21	%		21	%
Theoretical tax expense		(1,405	)		(8,087	)
Increase in income tax expense resulting from:
Permanent differences		14			12
Change in tax rate		-			-
Other differences		-			-
Change in valuation allowance		1,391			8,075
Income tax expense		—			—