Commitments and Contingent Liabilities (Details)	3 Months Ended
	Mar. 31, 2020 USD ($)
Other Commitments [Line Items]
Administrative Settlement Penalty	$ 37,000
Amount Paid to Fund Supplemental Environmental Projects	149,000
New Mexico Environment Department Notice of Violation 1 [Member]
Other Commitments [Line Items]
Estimated Litigation Liability	150,000
New Mexico Environment Department Notice of Violation 2 [Member]
Other Commitments [Line Items]
Estimated Litigation Liability	142,000
Low end of estimate
Other Commitments [Line Items]
Estimated Litigation Liability	375,000
High end of estimate
Other Commitments [Line Items]
Estimated Litigation Liability	$ 460,000