CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical)	9 Months Ended
Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Class A
ADS ratio	50	50
Cost of revenue
Share-based compensation expense	$ 198,402	$ 65,858
General and administrative expenses
Share-based compensation expense	1,281,380	434,790
Research and development expenses
Share-based compensation expense	2,157,990	2,564,606
Sales and marketing expenses
Share-based compensation expense	$ 168,727	$ 151,444

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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