Consolidated Statements of Cash Flows (Parentheticals)	Mar. 31, 2021 USD ($)
Cash required to collateralize open derivative positions	$ 12,001,485

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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Name:	us-gaap_DerivativeCollateralRightToReclaimCash
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant