Commitments and Contingencies (Details) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	May 31, 2020	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2018	Jul. 18, 2019
Commitments and Contingencies Disclosure [Abstract]
Advance deposit				$ 500,000
Legal claims	$ 142,000
Guarantee amount		$ 1,058,000	$ 1,058,000		$ 500,000
Commitments description			Furthermore, prior to drilling, an onshore license holder is required to deposit an additional bank guarantee in the amount as determined by the Petroleum Commissioner in accordance with the characteristics of the drilling and the drilling plan but no less than $250,000.
Bank guarantees to government bodies		976,000	$ 976,000
Bank guarantees to others		82,000	82,000
Amount paid to escrow agent with respect to the purchase of drilling rig			$ 1,000,000
Foreign currency exchange rate risks, description			During the period January 1, 2020 through June 30, 2020, the USD has fluctuated by approximately 0.3% against the NIS (the USD has strengthened relative to the NIS). By contrast, during the period January 1, 2019 through December 31, 2019, the USD fluctuated by approximately 7.8% against the NIS (the USD weakened relative to the NIS). Continued strengthening of the US dollar against the NIS will result in lower operating costs from NIS denominated expenses. To date, we have not hedged any of our currency exchange rate risks, but we may do so in the future.
Cash equivalents and short-term bank deposits		$ 10,340,000	$ 10,340,000
Weighted average annual interest rate		35.00%	43.00%