Swiss Franc Deposits - Additional Information (Detail) |
3 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Mar. 31, 2025
USD ($)
|
Mar. 31, 2025
CHF (SFr)
|
Mar. 31, 2024
USD ($)
|
Dec. 31, 2024
CHF (SFr)
|
Mar. 31, 2025
CHF (SFr)
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2024
CHF (SFr)
|
|
| Cash and Cash Equivalents [Abstract] | |||||||
| Principal deposits | $ 30,057,885 | SFr 26,637,107 | $ 9,880,799 | SFr 35,581,939 | |||
| Principal redemptions | 9,744,980 | 8,884,497 | $ 40,185,160 | 66,721,532 | |||
| Withdrawals (to pay expenses) | SFr 114,258 | SFr 139,002 | |||||
| Deposits, interest bearing | $ 165,601,072 | SFr 146,515,549 | $ 142,209,321 | SFr 128,877,197 | |||
| Annual nominal rate | 0.00% | 0.00% | |||||
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Rate of interest on investment. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Total amount of cash paid for operating activities during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow for reacquisition of callable preferred stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow from issuance of preferred stock that is classified as callable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|