DEFERRED REVENUE - Summary of analysis of contractual obligations (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
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| DEFERRED REVENUE | ||
| Deferred revenue, beginning | $ 1,546,712 | $ 3,231,431 |
| Addition | 1,773,994 | 1,220,972 |
| Usage | (758,794) | (2,905,691) |
| Deferred revenue, ending | $ 2,561,912 | $ 1,546,712 |
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- Definition The amount of contractual obligations in deferred revenue. No definition available.
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- Definition The amount of contractual obligations in deferred revenue addition. No definition available.
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- Definition The amount of contractual obligations in deferred revenue usage. No definition available.
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- References No definition available.
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