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STOCKHOLDERS' EQUITY - Warrants (Details)	Oct. 08, 2019 series $ / shares shares	Mar. 31, 2022 $ / shares shares
Stockholders' equity
Number of series of warrants | series	3
Number of shares of common stock that can be purchased from warrants	1
Annualized Rate Of Increase To The Strike Price Of Warrants Issued	6.75
Warrant term (in years)	3 years
Series A Warrants
Stockholders' equity
Warrants issued	1,798,322
Exercise price (in dollars per share) | $ / shares	$ 40.17	$ 45.54
Number of warrants issued		1,800,000
Series B Warrants
Stockholders' equity
Warrants issued	2,247,985
Exercise price (in dollars per share) | $ / shares	$ 48.28	$ 55.09
Number of warrants issued		2,200,000
Series C Warrants
Stockholders' equity
Warrants issued	2,890,271
Exercise price (in dollars per share) | $ / shares	$ 60.45	$ 69.41
Number of warrants issued		2,900,000

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- Definition

Represents the annualized rate of increase to the strike price of warrants issued under the warrants agreement.

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- Definition

Represents the number of series of warrants issued.

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- Definition

The number of warrants issued during the reporting period

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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Number of warrants or rights outstanding.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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