STATEMENTS OF CHANGES IN NET ASSETS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2022
Decrease in net assets from operations:
Net investment loss	$ (214)	$ (1,109)	$ (454)	$ (2,235)
Net realized (loss) gain on investment in BCH	(515)	363	(1,007)	758	$ 398
Net change in unrealized (depreciation) appreciation on investment in BCH	(7,213)	(24,547)	354	(32,078)	(132,445)
Net decrease in net assets resulting from operations	(7,942)	(25,293)	(1,107)	(33,555)
Increase in net assets from capital share transactions:
Shares issued	0	0	0	11,124
Net increase in net assets resulting from capital share transactions	0	0	0	11,124
Total decrease in net assets from operations and capital share transactions	(7,942)	(25,293)	(1,107)	(22,431)
Net assets:
Beginning of period	38,048	158,328	31,213	155,466	155,466
End of period	$ 30,106	$ 133,035	$ 30,106	$ 133,035	$ 31,213
Change in Shares outstanding:
Shares outstanding at beginning of period	34,812,900	34,812,900	34,812,900	32,434,700	32,434,700
Shares issued	0	0	0	2,378,200
Net increase in Shares	0	0	0	2,378,200
Shares outstanding at end of period	34,812,900	34,812,900	34,812,900	34,812,900	34,812,900