COMMON STOCK (Details) - USD ($) $ / shares in Units, $ in Thousands					1 Months Ended			12 Months Ended
		Jun. 09, 2021	Jul. 29, 2020	Mar. 30, 2018	Apr. 30, 2020	Aug. 31, 2019	Mar. 31, 2017	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Abstract]
Net proceeds from issuance of stock								$ 0	$ 0	$ 26,434
SMC 2020 Warrants [Member]
Class of Stock [Abstract]
Stock price (in dollars per share)	[1]		$ 89.28
SMC [Member]
Class of Stock [Abstract]
Stock price (in dollars per share)						$ 13.195
Stock repurchase (in shares)					242,681	154,821
Common Class A [Member]
Class of Stock [Abstract]
Common stock, shares authorized (in shares)								150,000,000	50,000,000
Additional shares reserved for issuance as dividends (in shares)								60,000,000
Common stock, additional shares authorized (in shares)								100,000,000
Common stock, par value (in dollars per share)								$ 0.0001	$ 0.0001
Number of votes for each share entitled								1
Issuance of Class A common stock in connection with public offering (in shares)						2,053,572
Stock price (in dollars per share)						$ 14.00
Net proceeds from issuance of stock						$ 28,750
Underwriting discount and offering expenses						$ 2,287
Common stock, shares issued (in shares)								17,869,643	16,896,693
Common stock, shares outstanding (in shares)								17,869,643	16,896,693
Common Class A [Member] | SMC 2020 Warrants [Member]
Class of Stock [Abstract]
Issuance of Class A common stock in connection with public offering (in shares)		242,681	242,681						242,681
Stock price (in dollars per share)			$ 7.50
Common Class A [Member] | SMC [Member]
Class of Stock [Abstract]
Exercise of common stock warrant issued (in shares)				397,502
Issuance of Class A common stock in connection with public offering (in shares)							397,502
Stock price (in dollars per share)						$ 13.195	$ 7.50
Common Class B [Member]
Class of Stock [Abstract]
Common stock, shares authorized (in shares)								5,307,816	2,409,738
Common stock, par value (in dollars per share)								$ 0.0001	$ 0.0001
Number of votes for each share entitled								20
Convertible shares in to Class A common stock (in shares)								1
Common stock, shares issued (in shares)								1,695,938	1,802,606
Common stock, shares outstanding (in shares)								1,695,938	1,802,606
Common Stock [Member] | Common Class A [Member]
Class of Stock [Abstract]
Exercise of common stock warrant issued (in shares)								242,681	64,717	1,438
Stock issued upon exercise of stock options (in shares)								623,601	832,504	195,297
Issuance of Class A common stock in connection with public offering (in shares)										2,053,572
Stock repurchase (in shares)										214,286
Conversion of class B common shares to Class A common shares (in shares)								106,668	60,002	35,815
Common Stock [Member] | Common Class B [Member]
Class of Stock [Abstract]
Exercise of common stock warrant issued (in shares)								0	0	0
Stock issued upon exercise of stock options (in shares)								0	0	0
Issuance of Class A common stock in connection with public offering (in shares)										0
Stock repurchase (in shares)										0
Conversion of class B common shares to Class A common shares (in shares)								(106,668)	(60,002)	(35,815)

[1] Fair value of Class A common stock was the closing market price of the Class A common stock on July 29, 2020.