Fair Value of Investments in Digital Assets - Changes in Quantity of Each Fund Component and Their Respective Fair Values (Details) | | | | | | 3 Months Ended | 12 Months Ended |
Apr. 05, 2022 USD ($) | Oct. 01, 2021 USD ($) | Jul. 01, 2021 USD ($) Quantity | Apr. 02, 2021 USD ($) | Jan. 04, 2021 USD ($) | Jun. 30, 2022 USD ($) Quantity | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) Quantity | Jun. 30, 2021 USD ($) Quantity | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) Quantity | Jun. 30, 2022 USD ($) Quantity | Jun. 30, 2021 USD ($) Quantity | Jun. 30, 2020 USD ($) Quantity |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Balance at Fair Value | | | $ 367,308,000 | | | | | | $ 367,308,000 | | | | | $ 367,308,000 | | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | $ (306,547,000) | $ (27,207,000) | $ 15,486,000 | 88,242,000 | $ (169,378,000) | $ 271,256,000 | $ 146,286,000 | $ 7,860,000 | (230,026,000) | $ 256,024,000 | $ (3,539,000) |
Realized Investment Gains (Losses) | $ 12,437,503 | $ 14,980,028 | $ 11,651,902 | $ 4,398,884 | $ (1,754,085) | 13,507,000 | $ 1,772,000 | $ 17,866,000 | $ 13,704,000 | 6,668,000 | $ 152,000 | $ 426,000 | $ 47,000 | 46,849,000 | 7,293,000 | $ (147,000) |
Balance at Fair Value end | | | | | | $ 173,852,000 | | | | $ 367,308,000 | | | | $ 173,852,000 | $ 367,308,000 | |
BTC | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 7,340.02142854 | | | | | | 7,340.02142854 | | | | 2,890.95335771 | 7,340.02142854 | 2,890.95335771 | 1,545.00887000 |
Quantity contributed | Quantity | | | | | | | | | | | | | | 13.24337963 | 4,668.87490748 | 1,423.77956922 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | (955.65065367) | (49.26609880) | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 166.17761410 | 170.54073785 | 77.83508151 |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Balance end | Quantity | | | | | | 6,231.43654040 | | | | 7,340.02142854 | | | | 6,231.43654040 | 7,340.02142854 | 2,890.95335771 |
Balance at Fair Value | | | $ 255,175,000 | | | | | | $ 255,175,000 | | | | $ 26,406,000 | $ 255,175,000 | $ 26,406,000 | $ 17,363,000 |
Fair Value, contributed | | | | | | | | | | | | | | 612,000 | 61,878,000 | 11,195,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | | | | (40,252,000) | (4,018,000) | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 7,160,000 | 5,373,000 | 662,000 |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (125,363,000) | 168,230,000 | (1,559,000) |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | 34,731,000 | 8,052,000 | 69,000 |
Balance at Fair Value end | | | | | | $ 117,743,000 | | | | $ 255,175,000 | | | | $ 117,743,000 | $ 255,175,000 | $ 26,406,000 |
ETH | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 45,287.78133655 | | | | | | 45,287.78133655 | | | | 16,713.06457809 | 45,287.78133655 | 16,713.06457809 | 8,931.94399617 |
Quantity contributed | Quantity | | | | | | | | | | | | | | 77.55708625 | 27,048.35623477 | 8,231.09766296 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | (4,990.48482039) | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | | 2,541.65341845 | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 1,015.08319570 | 1,015.29289476 | 449.97708104 |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Balance end | Quantity | | | | | | 39,359.77040671 | | | | 45,287.78133655 | | | | 39,359.77040671 | 45,287.78133655 | 16,713.06457809 |
Balance at Fair Value | | | $ 101,625,000 | | | | | | $ 101,625,000 | | | | $ 3,760,000 | $ 101,625,000 | $ 3,760,000 | $ 2,692,000 |
Fair Value, contributed | | | | | | | | | | | | | | 252,000 | 11,956,000 | 1,486,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | | | | (12,204,000) | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | | 2,993,000 | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 3,080,000 | 1,362,000 | 87,000 |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (59,012,000) | 83,519,000 | (216,000) |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | 12,555,000 | 759,000 | (115,000) |
Balance at Fair Value end | | | | | | $ 40,136,000 | | | | $ 101,625,000 | | | | $ 40,136,000 | $ 101,625,000 | $ 3,760,000 |
ADA | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 0 | | | | | | 0 | | | | | 0 | | |
Quantity contributed | Quantity | | | | | | | | | | | | | | 20,953.270382 | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | 11,178,490.637538 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 282,861.007666 | | |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Balance end | Quantity | | | | | | 10,916,582.900254 | | | | 0 | | | | 10,916,582.900254 | 0 | |
Balance at Fair Value | | | $ 0 | | | | | | $ 0 | | | | | $ 0 | | |
Fair Value, contributed | | | | | | | | | | | | | | 46,000 | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | 15,389,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 392,000 | | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (10,650,000) | | |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | 410,000 | | |
Balance at Fair Value end | | | | | | $ 4,803,000 | | | | $ 0 | | | | $ 4,803,000 | $ 0 | |
SOL | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 0 | | | | | | 0 | | | | | 0 | | |
Quantity contributed | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | 113,222.94565799 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 2,006.81300105 | | |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Balance end | Quantity | | | | | | 111,216.13265694 | | | | 0 | | | | 111,216.13265694 | 0 | |
Balance at Fair Value | | | $ 0 | | | | | | $ 0 | | | | | $ 0 | | |
Fair Value, contributed | | | | | | | | | | | | | | 0 | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | 15,869,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 246,000 | | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (11,864,000) | | |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | (202,000) | | |
Balance at Fair Value end | | | | | | $ 3,557,000 | | | | $ 0 | | | | $ 3,557,000 | $ 0 | |
DOT | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 0 | | | | | | 0 | | | | | 0 | | |
Quantity contributed | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | 330,149.03708006 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 1,961.54350143 | | |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Balance end | Quantity | | | | | | 328,187.49357863 | | | | 0 | | | | 328,187.49357863 | 0 | |
Balance at Fair Value | | | $ 0 | | | | | | $ 0 | | | | | $ 0 | | |
Fair Value, contributed | | | | | | | | | | | | | | 0 | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | 7,576,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 24,000 | | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (5,103,000) | | |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | (214,000) | | |
Balance at Fair Value end | | | | | | $ 2,235,000 | | | | $ 0 | | | | $ 2,235,000 | $ 0 | |
AVAX | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 0 | | | | | | 0 | | | | | 0 | | |
Quantity contributed | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | 89,505.76684675 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 531.78848214 | | |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Balance end | Quantity | | | | | | 88,973.97836461 | | | | 0 | | | | 88,973.97836461 | 0 | |
Balance at Fair Value | | | $ 0 | | | | | | $ 0 | | | | | $ 0 | | |
Fair Value, contributed | | | | | | | | | | | | | | 0 | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | 8,665,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 23,000 | | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (6,936,000) | | |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | (261,000) | | |
Balance at Fair Value end | | | | | | $ 1,445,000 | | | | $ 0 | | | | $ 1,445,000 | $ 0 | |
LTC | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 26,184.80079374 | | | | | | 26,184.80079374 | | | | 9,446.46857963 | 26,184.80079374 | 9,446.46857963 | 5,048.46535792 |
Quantity contributed | Quantity | | | | | | | | | | | | | | 47.39510812 | 15,310.38020958 | 4,652.33684958 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | (1,901.21497737) | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | | 2,010.23222215 | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 605.89374115 | 582.28021762 | 254.33362787 |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Balance end | Quantity | | | | | | 23,725.08718334 | | | | 26,184.80079374 | | | | 23,725.08718334 | 26,184.80079374 | 9,446.46857963 |
Balance at Fair Value | | | $ 3,707,000 | | | | | | $ 3,707,000 | | | | $ 388,000 | $ 3,707,000 | $ 388,000 | $ 652,000 |
Fair Value, contributed | | | | | | | | | | | | | | 9,000 | 908,000 | 241,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | | | | (281,000) | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | | 309,000 | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 83,000 | 81,000 | 16,000 |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (2,315,000) | 2,142,000 | (480,000) |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | 183,000 | 41,000 | (9,000) |
Balance at Fair Value end | | | | | | $ 1,220,000 | | | | $ 3,707,000 | | | | $ 1,220,000 | $ 3,707,000 | $ 388,000 |
UNI | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 0 | | | | | | 0 | | | | | 0 | | |
Quantity contributed | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | 236,778.41720026 | | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 4,091.39411814 | | |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | | |
Quantity, Balance end | Quantity | | | | | | 232,687.02308212 | | | | 0 | | | | 232,687.02308212 | 0 | |
Balance at Fair Value | | | $ 0 | | | | | | $ 0 | | | | | $ 0 | | |
Fair Value, contributed | | | | | | | | | | | | | | 0 | | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | 5,483,000 | | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 54,000 | | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (3,937,000) | | |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | (370,000) | | |
Balance at Fair Value end | | | | | | $ 1,122,000 | | | | $ 0 | | | | $ 1,122,000 | $ 0 | |
LINK | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 153,327.61595468 | | | | | | 153,327.61595468 | | | | 0 | 153,327.61595468 | 0 | |
Quantity contributed | Quantity | | | | | | | | | | | | | | 310.46132900 | 253.44138473 | |
Quantity contributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | 9,391.16255779 | 154,021.49829970 | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 4,041.64897033 | 947.32372975 | |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | |
Quantity, Balance end | Quantity | | | | | | 158,987.59087114 | | | | 153,327.61595468 | | | | 158,987.59087114 | 153,327.61595468 | 0 |
Balance at Fair Value | | | $ 2,956,000 | | | | | | $ 2,956,000 | | | | $ 0 | $ 2,956,000 | $ 0 | |
Fair Value, contributed | | | | | | | | | | | | | | 8,000 | 9,000 | |
Fair value, contributed from portfolio rebalancing | | | | | | | | | | | | | | 143,000 | 4,622,000 | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 78,000 | 30,000 | |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (2,016,000) | (1,709,000) | |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | (53,000) | 64,000 | |
Balance at Fair Value end | | | | | | $ 960,000 | | | | $ 2,956,000 | | | | $ 960,000 | $ 2,956,000 | $ 0 |
BCH | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 7,379.46217362 | | | | | | 7,379.46217362 | | | | 2,908.94301800 | 7,379.46217362 | 2,908.94301800 | 1,576.36869934 |
Quantity contributed | Quantity | | | | | | | | | | | | | | 13.60904594 | 4,696.88194985 | 1,432.63933393 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | (906.97968581) | (55.03257309) | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | 171.88324722 | 171.33022114 | 100.06501527 |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | 0 | 0 | 0 |
Quantity, Balance end | Quantity | | | | | | 6,314.20828653 | | | | 7,379.46217362 | | | | 6,314.20828653 | 7,379.46217362 | 2,908.94301800 |
Balance at Fair Value | | | $ 3,845,000 | | | | | | $ 3,845,000 | | | | $ 643,000 | $ 3,845,000 | $ 643,000 | $ 652,000 |
Fair Value, contributed | | | | | | | | | | | | | | 8,000 | 1,185,000 | 346,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | | | | (388,000) | (31,000) | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | 74,000 | 81,000 | 27,000 |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | (2,830,000) | 2,102,000 | (284,000) |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | 70,000 | 27,000 | (44,000) |
Balance at Fair Value end | | | | | | $ 631,000 | | | | $ 3,845,000 | | | | $ 631,000 | $ 3,845,000 | $ 643,000 |
XRP | | | | | | | | | | | | | | | | |
Summary Of Investment Holdings [Line Items] | | | | | | | | | | | | | | | | |
Quantity, Balance | Quantity | | | 0 | | | | | | 0 | | | | 6,697,006.68459600 | 0 | 6,697,006.68459600 | 3,579,073.61054800 |
Quantity contributed | Quantity | | | | | | | | | | | | | | | 10,327,653.14534000 | 3,298,241.09008900 |
Quantity distributed from portfolio rebalancing | Quantity | | | | | | | | | | | | | | | (16,838,197.64668600) | |
Quantity distributed for Manager's Fee, related party | Quantity | | | | | | | | | | | | | | | 186,462.18325000 | 180,308.01604100 |
Quantity net change in unrealized (depreciation) appreciation on investment | Quantity | | | | | | | | | | | | | | | 0 | 0 |
Quantity, Net realized gain (loss) on investment | Quantity | | | | | | | | | | | | | | | 0 | 0 |
Quantity, Balance end | Quantity | | | | | | | | | | 0 | | | | | 0 | 6,697,006.68459600 |
Balance at Fair Value | | | $ 0 | | | | | | $ 0 | | | | $ 1,177,000 | $ 0 | $ 1,177,000 | $ 1,440,000 |
Fair Value, contributed | | | | | | | | | | | | | | | 2,668,000 | 831,000 |
Fair value, distributed from portfolio rebalancing | | | | | | | | | | | | | | | (3,875,000) | |
Fair Value, distributed for Manager's Fee, related party | | | | | | | | | | | | | | | 60,000 | 46,000 |
Net change in unrealized (depreciation) appreciation on investments | | | | | | | | | | | | | | | 1,740,000 | (1,000,000) |
Realized Investment Gains (Losses) | | | | | | | | | | | | | | | (1,650,000) | (48,000) |
Balance at Fair Value end | | | | | | | | | | $ 0 | | | | | $ 0 | $ 1,177,000 |