Commitments and Contingencies (Details Textual)			12 Months Ended
	Jul. 01, 2016 USD ($)	Sep. 10, 2015 USD ($) ft²	Dec. 31, 2019 USD ($) ft² Bonds	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 14, 2016 ft²
Commitments And Contingencies [Line Items]
Asset retirement obligation			$ 585,000
Liabilities settled to Elijah License area			$ 135,000
Number of charitable foundations established | Bonds			2
Percentage of royalty or equivalent interest			3.00%
Aggregate percentage of royalty or equivalent interest			6.00%
Lease payment due, monthly			$ 39,200
Lease renewal description			The Company has an option to renew the lease for another five years, provided it is not in breach of the agreement, where it is required as well to furnish a notice of intent to exercise the option six months prior to termination of lease, and it furnishes a bank guarantee and insurance confirmation prior to commencement of option period.
Rent, taxes, utilities, insurance, maintenance expenses			$ 348,000	309,000
Bank guarantees to government			1,011,000
Bank guarantees to others			87,000
Aggregate guarantee amount			1,098,000
Estimated future development costs			$ 0	250,000
Purchase vehicle down payment					$ 15,000
Lease term			The lease period is for 44 months (approximately 3.7 years, hereinafter the "lease period") starting on March 25, 2017 and ending on October 24, 2020.
Lease expiration date					Oct. 24, 2020
Lease monthly payment			$ 24,600	11,300	$ 1,160
Lease purchase option amount					$ 21,700
Net carrying value of the capital lease asset			42,000	52,000
Capital lease asset and a capital lease obligation amount			$ 71,000
Capital lease asset estimated useful life			7 years
Accumulated depreciation capital lease asset amounted			$ 29,000	19,000
Accrued estimated loss amount				$ 500,000
Pay for lease			85,000
Deposit a base bank guarantee			500,000
Additional bank guarantee for drilling			$ 250,000
Caesarea Israel Field Office [Member]
Commitments And Contingencies [Line Items]
Lease term			The lease term is five years from February 1, 2014 to January 31, 2019
Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Area of property | ft²		7.276				1.498
Area of new property, total | ft²						8.774
Lease term			65 months (about 5.5 years) from December 1, 2015 to April 30, 2021.
Lease expiration date		Apr. 30, 2021
David Mcdavid Plano Lincoln Mercury [Member]
Commitments And Contingencies [Line Items]
Lessor agreement description			The Company and David McDavid Plano Lincoln Mercury (as Lessor) signed a motor vehicle lease agreement for a 2017 Lincoln MKZ. The first payment of $873.87 was due on August 14, 2017 and this was paid on or around that date. The lease calls for 38 additional payments of $873.87 so that the sum of all 39 payments is $34,080.93. At the inception of the lease, and in addition to the sum of the 39 payments, a one-time payment of $5,000 was made. The value at the end of the lease has a residual value of $18,565.70 per the terms of the lease agreement. Additionally, the Company must pay to the Lessor $.20 cents per mile for each mile in excess of 82,081 miles. This lease is treated as an operating lease.
Scenario Six [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly	$ 10,967.5
Scenario Five [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly	10,601.92
Scenario Four [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly	10,236.33
Scenario Three [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly	9,870.75
Scenario Two [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly	9,505.17
Scenario One [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly	$ 7,882
Scenario Eleven [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly		$ 9,095
Scenario Ten [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly		8,792
Scenario Nine [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly		8,489
Scenario Eight [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly		8,186
Scenario Seven [Member] | Hartman Income Reit Property Holdings Llc [Member]
Commitments And Contingencies [Line Items]
Lease payment due, monthly		$ 7,882
Scenario Thirteen [Member] | Caesarea Israel Field Office [Member]
Commitments And Contingencies [Line Items]
Area of property | ft²			6,566
Lease payment due, monthly			$ 37,800
Lease monthly payment			$ 10,100