Condensed Statements of Balance Sheet (Parenthetical) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Investment owned, at cost	$ 365,043,367	$ 230,356,359
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized, Unlimited	Unlimited	Unlimited

Indicates that the number of common shares permitted to be issued by an entity's charter and bylaws is unlimited. The acceptable value is "Unlimited".

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_CommonStockSharesAuthorizedUnlimited
Namespace Prefix:	us-gaap_
Data Type:	us-types:authorizedUnlimitedItemType
Balance Type:	na
Period Type:	duration