SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue from contracts with customers (Details) - USD ($) |
12 Months Ended | ||
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Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | |||
| Deferred revenue for remaining unsatisfied performance obligations | $ 2,561,912 | $ 1,546,712 | $ 3,231,431 |
| Amount of recognized revenue that was included in the deferred revenue balance at the beginning of the period | $ 758,794 | $ 2,905,691 | $ 2,155,612 |
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- References No definition available.
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- Definition The amount of revenue that was included in the contract liability balance at the beginning of the period. [Refer: Contract liabilities; Revenue from contracts with customers] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). [Refer: Performance obligations [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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