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UNALLOCATED RESERVE AND DISTRIBUTIONS (Tables) | 12 Months Ended
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Jan. 31, 2021
UNALLOCATED RESERVE AND DISTRIBUTIONS |
Schedule of unallocated cash and U.S. Government securities portion of the Trust's Unallocated Reserve | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | January 31, 2021 | ​ | January 31, 2020 | ​
Cash and U.S. Government securities | ​ | $ | 22,407,610 | ​ | $ | 23,510,129 | ​
Distribution payable | ​ |  | (6,035,205) | ​ |  | (9,184,007) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unallocated cash and U.S. Government securities | ​ | $ | 16,372,405 | ​ | $ | 14,326,122 | ​
Schedule of reconciliation of Trust's Unallocated Reserve | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Unallocated | ​ | ​ | Trust | ​ | ​ | ​ | ​
​ | ​ | ​ | Reserve | ​ | ​ | Corpus | ​ | ​ | Total | ​
Balances at January 31, 2020 |  | $ | 11,831,014 | ​ | $ | 3 | ​ | $ | 11,831,017 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ |  | 23,407,647 | ​ |  | — | ​ |  | 23,407,647 | ​
Distributions declared | ​ |  | (18,761,615) | ​ |  | — | ​ |  | (18,761,615) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at January 31, 2021 | ​ | $ | 16,477,046 | ​ | $ | 3 | ​ | $ | 16,477,049 | ​

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