Accounts Receivable - Accounts Receivable Balance (Details) - USD ($) |
Apr. 30, 2022 |
Apr. 30, 2021 |
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| Receivables [Abstract] | 听 | 听 |
| Total accounts receivable, gross | $ 39,226,054 | $ 30,264,393 |
| Long-term contractual accounts receivable | (11,406,525) | (10,249,833) |
| Accounts receivable, gross | 27,819,529 | 20,014,560 |
| Less: allowance for doubtful accounts | (3,460,288) | (3,289,816) |
| Accounts receivable, net | $ 24,359,241 | $ 16,724,744 |
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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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