Fair Value of Investments in Digital Assets - Changes in Quantity of Each Fund Component and Their Respective Fair Values (Details) | | | | | | | 3 Months Ended | 6 Months Ended | 12 Months Ended |
Oct. 05, 2022 USD ($) | Jul. 07, 2022 USD ($) | Apr. 05, 2022 USD ($) | Oct. 01, 2021 USD ($) | Jul. 01, 2021 USD ($) Quantity | Apr. 02, 2021 USD ($) | Dec. 31, 2022 USD ($) Quantity | Dec. 31, 2021 USD ($) | Dec. 31, 2022 USD ($) Quantity | Dec. 31, 2021 USD ($) Quantity | Jun. 30, 2022 USD ($) Quantity |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Balance at Fair Value | | | | | | | | | $ 173,852,000 | | |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | $ (30,709,000) | $ 15,486,000 | 356,000 | $ 103,728,000 | |
Net realized gain (loss) on investment | $ 1,133,040 | $ 14,895,069 | $ 12,437,503 | $ 14,980,028 | $ 11,651,902 | $ 4,398,884 | 1,397,000 | $ 17,866,000 | (13,024,000) | $ 31,570,000 | |
Balance at Fair Value | | | | | | | $ 158,755,000 | | $ 158,755,000 | | $ 173,852,000 |
BTC | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 7,340.02142854 | | | | 6,231.43654040 | 7,340.02142854 | 7,340.02142854 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 13.24337963 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | (955.65065367) |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | 100.85776946 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (79.86987251) | | (166.17761410) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 6,252.42443735 | | 6,252.42443735 | | 6,231.43654040 |
Balance at Fair Value | | | | | $ 255,175,000 | | | | $ 117,743,000 | $ 255,175,000 | $ 255,175,000 |
Fair Value, contributed | | | | | | | | | 0 | | 612,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | (40,252,000) |
Fair value, contributed from portfolio rebalancing | | | | | | | | | 2,071,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (1,573,000) | | (7,160,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | (16,212,000) | | (125,363,000) |
Net realized gain (loss) on investment | | | | | | | | | 1,488,000 | | 34,731,000 |
Balance at Fair Value | | | | | | | $ 103,517,000 | | $ 103,517,000 | | $ 117,743,000 |
ETH | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 45,287.78133655 | | | | 39,359.77040671 | 45,287.78133655 | 45,287.78133655 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 77.55708625 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | (4,990.48482039) |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | 1,144.30646254 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (509.03263763) | | (1,015.08319570) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 39,995.04423162 | | 39,995.04423162 | | 39,359.77040671 |
Balance at Fair Value | | | | | $ 101,625,000 | | | | $ 40,136,000 | $ 101,625,000 | $ 101,625,000 |
Fair Value, contributed | | | | | | | | | 0 | | 252,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | (12,204,000) |
Fair value, contributed from portfolio rebalancing | | | | | | | | | 1,266,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (717,000) | | (3,080,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | 6,594,000 | | (59,012,000) |
Net realized gain (loss) on investment | | | | | | | | | 768,000 | | 12,555,000 |
Balance at Fair Value | | | | | | | $ 48,047,000 | | $ 48,047,000 | | $ 40,136,000 |
ADA | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 0 | | | | 10,916,582.900254 | 0 | 0 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 20,953.270382 |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | 396,962.614260 | | 11,178,490.637538 |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (141,863.622114) | | (282,861.007666) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 11,171,681.892400 | | 11,171,681.892400 | | 10,916,582.900254 |
Balance at Fair Value | | | | | $ 0 | | | | $ 4,803,000 | $ 0 | $ 0 |
Fair Value, contributed | | | | | | | | | 0 | | 46,000 |
Fair value, contributed from portfolio rebalancing | | | | | | | | | 185,000 | | 15,389,000 |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (58,000) | | (392,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | (1,959,000) | | (10,650,000) |
Net realized gain (loss) on investment | | | | | | | | | (190,000) | | 410,000 |
Balance at Fair Value | | | | | | | $ 2,781,000 | | $ 2,781,000 | | $ 4,803,000 |
MATIC | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | | | | | 0 | | |
Quantity contributed | Quantity | | | | | | | | | 0 | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | 2,879,708.35424883 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (17,305.53285259) | | |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | |
Quantity, Balance | Quantity | | | | | | | 2,862,402.82139624 | | 2,862,402.82139624 | | 0 |
Balance at Fair Value | | | | | | | | | $ 0 | | |
Fair Value, contributed | | | | | | | | | 0 | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | 2,409,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (16,000) | | |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | (219,000) | | |
Net realized gain (loss) on investment | | | | | | | | | 9,000 | | |
Balance at Fair Value | | | | | | | $ 2,183,000 | | $ 2,183,000 | | $ 0 |
SOL | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 0 | | | | 111,216.13265694 | 0 | 0 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 0 |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | 6,029.76517467 | | 113,222.94565799 |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (1,455.09720385) | | (2,006.81300105) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 115,790.80062776 | | 115,790.80062776 | | 111,216.13265694 |
Balance at Fair Value | | | | | $ 0 | | | | $ 3,557,000 | $ 0 | $ 0 |
Fair Value, contributed | | | | | | | | | 0 | | 0 |
Fair value, contributed from portfolio rebalancing | | | | | | | | | 216,000 | | 15,869,000 |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (42,000) | | (246,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | (2,408,000) | | (11,864,000) |
Net realized gain (loss) on investment | | | | | | | | | (154,000) | | (202,000) |
Balance at Fair Value | | | | | | | $ 1,169,000 | | $ 1,169,000 | | $ 3,557,000 |
AVAX | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 0 | | | | 88,973.97836461 | 0 | 0 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 0 |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | 8,785.21069538 | | 89,505.76684675 |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (1,202.02003652) | | (531.78848214) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 96,557.16902347 | | 96,557.16902347 | | 88,973.97836461 |
Balance at Fair Value | | | | | $ 0 | | | | $ 1,445,000 | $ 0 | $ 0 |
Fair Value, contributed | | | | | | | | | 0 | | 0 |
Fair value, contributed from portfolio rebalancing | | | | | | | | | 162,000 | | 8,665,000 |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (21,000) | | (23,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | (442,000) | | (6,936,000) |
Net realized gain (loss) on investment | | | | | | | | | (86,000) | | (261,000) |
Balance at Fair Value | | | | | | | $ 1,058,000 | | $ 1,058,000 | | $ 1,445,000 |
DOT | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 0 | | | | 328,187.49357863 | 0 | 0 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 0 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | (328,052.64509826) | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | 330,149.03708006 |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (134.84848037) | | (1,961.54350143) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 0 | | 0 | | 328,187.49357863 |
Balance at Fair Value | | | | | $ 0 | | | | $ 2,235,000 | $ 0 | $ 0 |
Fair Value, contributed | | | | | | | | | 0 | | 0 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | (2,247,000) | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | 7,576,000 |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (1,000) | | (24,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | 5,103,000 | | (5,103,000) |
Net realized gain (loss) on investment | | | | | | | | | (5,090,000) | | (214,000) |
Balance at Fair Value | | | | | | | $ 0 | | $ 0 | | $ 2,235,000 |
LTC | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 26,184.80079374 | | | | 23,725.08718334 | 26,184.80079374 | 26,184.80079374 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 47.39510812 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | (23,715.33881688) | | (1,901.21497737) |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (9.74836646) | | (605.89374115) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 0 | | 0 | | 23,725.08718334 |
Balance at Fair Value | | | | | $ 3,707,000 | | | | $ 1,220,000 | $ 3,707,000 | $ 3,707,000 |
Fair Value, contributed | | | | | | | | | 0 | | 9,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | (1,177,000) | | (281,000) |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | (1,000) | | (83,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | 574,000 | | (2,315,000) |
Net realized gain (loss) on investment | | | | | | | | | (616,000) | | 183,000 |
Balance at Fair Value | | | | | | | $ 0 | | $ 0 | | $ 1,220,000 |
UNI | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 0 | | | | 232,687.02308212 | 0 | 0 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 0 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | (232,591.41465073) | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | 236,778.41720026 |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (95.60843139) | | (4,091.39411814) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 0 | | 0 | | 232,687.02308212 |
Balance at Fair Value | | | | | $ 0 | | | | $ 1,122,000 | $ 0 | $ 0 |
Fair Value, contributed | | | | | | | | | 0 | | 0 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | (1,236,000) | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | 5,483,000 |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | 0 | | (54,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | 3,937,000 | | (3,937,000) |
Net realized gain (loss) on investment | | | | | | | | | (3,823,000) | | (370,000) |
Balance at Fair Value | | | | | | | $ 0 | | $ 0 | | $ 1,122,000 |
LINK | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 153,327.61595468 | | | | 158,987.59087114 | 153,327.61595468 | 153,327.61595468 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 310.46132900 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | (158,922.26469191) | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | 9,391.16255779 |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (65.32617923) | | (4,041.64897033) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 0 | | 0 | | 158,987.59087114 |
Balance at Fair Value | | | | | $ 2,956,000 | | | | $ 960,000 | $ 2,956,000 | $ 2,956,000 |
Fair Value, contributed | | | | | | | | | 0 | | 8,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | (989,000) | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | 143,000 |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | 0 | | (78,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | 3,726,000 | | (2,016,000) |
Net realized gain (loss) on investment | | | | | | | | | (3,697,000) | | (53,000) |
Balance at Fair Value | | | | | | | $ 0 | | $ 0 | | $ 960,000 |
BCH | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | |
Quantity, Balance | Quantity | | | | | 7,379.46217362 | | | | 6,314.20828653 | 7,379.46217362 | 7,379.46217362 |
Quantity contributed | Quantity | | | | | | | | | 0 | | 13.60904594 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | (6,311.61385070) | | (906.97968581) |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | (2.59443583) | | (171.88324722) |
Quantity net change in unrealized depreciation (appreciation) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | 0 | | 0 |
Quantity, Balance | Quantity | | | | | | | 0 | | 0 | | 6,314.20828653 |
Balance at Fair Value | | | | | $ 3,845,000 | | | | $ 631,000 | $ 3,845,000 | $ 3,845,000 |
Fair Value, contributed | | | | | | | | | 0 | | 8,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | (660,000) | | (388,000) |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | 0 | | (74,000) |
Net change in unrealized (depreciation) appreciation on investments in digital assets | | | | | | | | | 1,662,000 | | (2,830,000) |
Net realized gain (loss) on investment | | | | | | | | | (1,633,000) | | 70,000 |
Balance at Fair Value | | | | | | | $ 0 | | $ 0 | | $ 631,000 |