Derivative and Hedging Instruments (Details-3) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Commodity Contract [Member]
Offsetting Liabilities [Line Items]
Gross amounts	$ 357	$ 849
Gross amounts offset in balance sheet	(357)	(849)
Collateral posted against derivative positions	0	0
Net amount presented in balance sheet	0	0
Financial Transmission Rights [Member]
Offsetting Liabilities [Line Items]
Gross amounts	16
Gross amounts offset in balance sheet	0
Collateral posted against derivative positions	(16)
Net amount presented in balance sheet	0
Purchased Power Agreement [Member]
Offsetting Liabilities [Line Items]
Gross amounts	130	2,140
Gross amounts offset in balance sheet	0	0
Collateral posted against derivative positions	0	0
Net amount presented in balance sheet	$ 130	$ 2,140

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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