Derivative and Hedging Instruments (Details-2) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Offsetting Assets [Line Items]
Collateral posted against derivative positions	$ (6,900)	$ (1,300)
Commodity Contract [Member]
Offsetting Assets [Line Items]
Gross amounts	10,144	3,379
Gross amounts offset in balance sheet	(357)	(849)
Collateral posted against derivative positions	(6,911)	(1,254)
Net amount presented in balance sheet	$ 2,876	1,276
Financial Transmission Rights [Member]
Offsetting Assets [Line Items]
Gross amounts		227
Gross amounts offset in balance sheet		0
Collateral posted against derivative positions		0
Net amount presented in balance sheet		$ 227

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

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