Commitments And Contingencies (Narrative) (Details)	12 Months Ended	60 Months Ended
	Dec. 31, 2019 USD ($) $ / shares $ / bbl shares	Dec. 31, 2019 USD ($) $ / shares	Sep. 30, 2012 USD ($)
Loss Contingencies [Line Items]
Cost reduction		$ 377,000
Cost reduction paid into common stock	$ 49,000
Shares issued for services | shares	100,000
Share price | $ / shares	$ 0.49	$ 0.49
Period of trailing average of WTI	30 days
Incidence Of Non-Compliance [Member]
Loss Contingencies [Line Items]
Maximum potential loss			$ 386,000
Minimum [Member] | West Texas Intermediate [Member]
Loss Contingencies [Line Items]
Compensation reduction | $ / bbl	70
Compensation reimbursement | $ / bbl	85