Fair Value of Financial Instruments (Details-3)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Basis adjustment:
Basis adjustment - on peak		94.10%
Basis adjustment - off peak		92.40%
US Treasury Bill Securities [Member]
Deferred compensation plan [Abstract]
Investment interest calculation, investment maturity period (26 weeks)	182 days
Investment interest calculation, monthly compounding rate	1.00%
Investment interest calculation, minimum annual rate compounded monthly	7.00%
Minimum [Member]
Counterparty fuel mix:
Internal generation		41.00%
Purchased power		34.00%
Maximum [Member]
Counterparty fuel mix:
Internal generation		66.00%
Purchased power		59.00%
Weighted Average [Member]
Counterparty fuel mix:
Internal generation		56.60%
Purchased power		43.40%