CONDENSED STATEMENTS OF ASSETS AND LIABILITIES (UNAUDITED) (Parenthetical) - USD ($)	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Cost	$ 36,402,538		$ 58,117,583
Net assets per share (in dollars per share)	$ 290.62	$ 407.74	$ 399.94	$ 559.66	$ 686.60	$ 653.91
Shares of capital stock outstanding (in shares)	100,000		100,000