Commodity Risk Management Activities - Commodity Price Risks (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Commodity Risk Management Activities
Recognized gains on financial commodity derivative contracts	$ 465,341	$ 1,721,018
Cash received on settlements of contracts	$ 64,200	$ 1,345,942

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration