Statements of Changes in Shareholders' Equity and Redeemable Capital Shares (Unaudited) - USD ($)	Total	Retained Earnings [Member]	Redeemable Capital Shares [Member]
Balance at Dec. 31, 2022			$ 216,958,140
Balance, Shares at Dec. 31, 2022			2,250,000
Purchases of Shares			$ 14,831,931
Purchases of Shares, Shares			150,000
Redemption of Shares			$ (73,564,345)
Redemption of Shares, Shares			(750,000)
Net Increase (Decrease) due to Share Transactions			$ (58,732,414)
Net Increase (Decrease) due to Share Transactions, Shares			(600,000)
Net Comprehensive Income (Loss)	$ (395,860)	$ (395,860)
Adjustment of Redeemable Capital Shares to Redemption Value related to Retained Earnings	395,860	395,860	$ (395,860)
Adjustment of Redeemable Capital Shares to Redemption Value			6,378,689
Balance at Jun. 30, 2023			$ 164,208,555
Balance, Shares at Jun. 30, 2023			1,650,000
Balance at Mar. 31, 2023			$ 199,996,023
Balance, Shares at Mar. 31, 2023			2,050,000
Purchases of Shares			$ 9,999,677
Purchases of Shares, Shares			100,000
Redemption of Shares			$ (49,454,582)
Redemption of Shares, Shares			(500,000)
Net Increase (Decrease) due to Share Transactions			$ (39,454,905)
Net Increase (Decrease) due to Share Transactions, Shares			(400,000)
Net Comprehensive Income (Loss)	(190,483)	(190,483)
Adjustment of Redeemable Capital Shares to Redemption Value related to Retained Earnings	190,483	190,483	$ (190,483)
Adjustment of Redeemable Capital Shares to Redemption Value			3,857,920
Balance at Jun. 30, 2023			$ 164,208,555
Balance, Shares at Jun. 30, 2023			1,650,000
Balance at Dec. 31, 2023	$ 190,305,158		$ 190,305,158
Balance, Shares at Dec. 31, 2023	1,800,000		1,800,000
Purchases of Shares			$ 29,587,224
Purchases of Shares, Shares			300,000
Redemption of Shares			$ (69,507,875)
Redemption of Shares, Shares			(700,000)
Net Increase (Decrease) due to Share Transactions			$ (39,920,651)
Net Increase (Decrease) due to Share Transactions, Shares			(400,000)
Distributions	$ (54,755)	(54,755)
Net Comprehensive Income (Loss)	(14,061)	(14,061)
Adjustment of Redeemable Capital Shares to Redemption Value related to Retained Earnings	68,816	68,816	$ (68,816)
Adjustment of Redeemable Capital Shares to Redemption Value			(11,744,286)
Balance at Jun. 30, 2024	$ 138,571,405		$ 138,571,405
Balance, Shares at Jun. 30, 2024	1,400,000		1,400,000
Balance at Mar. 31, 2024			$ 148,183,348
Balance, Shares at Mar. 31, 2024			1,500,000
Purchases of Shares			$ 19,706,425
Purchases of Shares, Shares			200,000
Redemption of Shares			$ (29,322,715)
Redemption of Shares, Shares			(300,000)
Net Increase (Decrease) due to Share Transactions			$ (9,616,290)
Net Increase (Decrease) due to Share Transactions, Shares			(100,000)
Distributions	$ (6,226)	(6,226)
Net Comprehensive Income (Loss)	(53,267)	(53,267)
Adjustment of Redeemable Capital Shares to Redemption Value related to Retained Earnings	59,493	$ 59,493	$ (59,493)
Adjustment of Redeemable Capital Shares to Redemption Value			63,840
Balance at Jun. 30, 2024	$ 138,571,405		$ 138,571,405
Balance, Shares at Jun. 30, 2024	1,400,000		1,400,000