| Schedule of valuation and qualifying accounts
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| Description |
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Balance at
Beginning of
Year |
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Additions
Charged to
Costs and
Expenses |
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Charged to
Other
Accounts |
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Deductions |
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Balance at
End of Year |
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| Reserve Deducted in the Balance Sheets from the Asset to which it applies: |
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| Allowance for Deferred Tax Assets |
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| Year ended April 30, 2022 |
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$ |
16,498,199 |
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– |
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(739,798) |
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– |
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15,758,401 |
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| Year ended April 30, 2021 |
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$ |
15,528,958 |
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– |
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969,241 |
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– |
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16,498,199 |
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