Derivative and Hedging Instruments (Details-2) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Offsetting Assets [Line Items]
Collateral posted against derivative positions	$ (6,500)	$ (1,300)
Commodity Contract [Member]
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset	12,066	3,379
Gross amounts offset in balance sheet	(3,694)	(849)
Collateral posted against derivative positions	(6,512)	(1,254)
Net amount presented in balance sheet	1,860	1,276
Financial Transmission Rights [Member]
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset	112	227
Gross amounts offset in balance sheet	0	0
Collateral posted against derivative positions	0	0
Net amount presented in balance sheet	$ 112	$ 227

Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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