STOCK-BASED COMPENSATION (Details)	3 Months Ended	12 Months Ended
Mar. 31, 2021 $ / shares shares	Dec. 31, 2020 $ / shares shares
STOCK-BASED COMPENSATION [Abstract]
Exchange ratio	1.7776
Restricted Stock Awards and Restricted Stock Units [Member]
Number of Restricted Shares [Roll Forward]
Outstanding at beginning of period (in shares)	1,699,676	1,237,396
Issued (in shares)	344,000	2,191,869
Vested (in shares)	172,836	1,729,589
Canceled (in shares)	0	0
Outstanding at end of period (in shares)	1,870,840	1,699,676
Weighted Average Grant Date Fair Value Per Share [Abstract]
Outstanding at beginning of period (in dollars per share) \| $ / shares	$ 1.28	$ 0.62
Issued (in dollars per share) \| $ / shares	12.18	1.21
Vested (in dollars per share) \| $ / shares	0.03	0.72
Cancelled (in dollars per share) \| $ / shares	0	0
Outstanding at end of period (in dollars per share) \| $ / shares	$ 2.27	$ 1.28
Restricted Stock Units [Member]
Number of Restricted Shares [Roll Forward]
Outstanding at end of period (in shares)	344,000
Restricted Stock Awards [Member]
Number of Restricted Shares [Roll Forward]
Outstanding at end of period (in shares)	1,526,840

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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