CONVERTIBLE PREFERRED STOCK - Schedule of Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2021	Jul. 29, 2021	Dec. 31, 2020	Dec. 31, 2019
Temporary Equity [Line Items]
Authorized (in shares)		19,074,000	19,074,000
Outstanding (in shares)	0	19,074,000	19,074,000	18,247,000
Aggregate liquidation preference		$ 183,300	$ 183,300
Funds received		183,300	183,300
Fees incurred		691	691
Carrying value of convertible preferred stock	$ 0	$ 182,609	$ 182,609	$ 137,686
A
Temporary Equity [Line Items]
Authorized (in shares)		3,865,000	3,865,000
Outstanding (in shares)		3,865,000	3,865,000
Per share price at issuance (in usd per share)		$ 0.85	$ 0.85
Aggregate liquidation preference		$ 3,300	$ 3,300
Funds received		3,300	3,300
Fees incurred		52	52
Carrying value of convertible preferred stock		$ 3,248	$ 3,248
B
Temporary Equity [Line Items]
Authorized (in shares)		6,298,000	6,298,000
Outstanding (in shares)		6,298,000	6,298,000
Per share price at issuance (in usd per share)		$ 2.38	$ 2.38
Aggregate liquidation preference		$ 15,000	$ 15,000
Funds received		15,000	15,000
Fees incurred		60	60
Carrying value of convertible preferred stock		$ 14,940	$ 14,940
C
Temporary Equity [Line Items]
Authorized (in shares)		2,948,000	2,948,000
Outstanding (in shares)		2,948,000	2,948,000
Per share price at issuance (in usd per share)		$ 6.78	$ 6.78
Aggregate liquidation preference		$ 20,000	$ 20,000
Funds received		20,000	20,000
Fees incurred		112	112
Carrying value of convertible preferred stock		$ 19,888	$ 19,888
D
Temporary Equity [Line Items]
Authorized (in shares)		3,154,000	3,154,000
Outstanding (in shares)		3,154,000	3,154,000
Per share price at issuance (in usd per share)		$ 14.27
Aggregate liquidation preference		$ 45,000	$ 45,000
Funds received		45,000	45,000
Fees incurred		146	146
Carrying value of convertible preferred stock		$ 44,853	$ 44,853
E
Temporary Equity [Line Items]
Authorized (in shares)		1,224,000	1,224,000
Outstanding (in shares)		1,224,000	1,224,000
Per share price at issuance (in usd per share)		$ 20.43	$ 20.43
Aggregate liquidation preference		$ 25,000	$ 25,000
Funds received		25,000	25,000
Fees incurred		92	92
Carrying value of convertible preferred stock		$ 24,909	$ 24,909
F
Temporary Equity [Line Items]
Authorized (in shares)		758,000
Outstanding (in shares)		758,000	758,000
Per share price at issuance (in usd per share)		$ 39.57	$ 39.57
Aggregate liquidation preference		$ 30,000	$ 30,000
Funds received		30,000	30,000
Fees incurred		153	153
Carrying value of convertible preferred stock		$ 29,848	$ 29,848
G
Temporary Equity [Line Items]
Authorized (in shares)		241,000	241,000
Outstanding (in shares)		241,000	241,000
Per share price at issuance (in usd per share)		$ 41.38	$ 41.38
Aggregate liquidation preference		$ 10,000	$ 10,000
Funds received		10,000	10,000
Fees incurred		24	24
Carrying value of convertible preferred stock		$ 9,976	$ 9,976
H
Temporary Equity [Line Items]
Authorized (in shares)		586,000	586,000
Outstanding (in shares)		586,000	586,000
Per share price at issuance (in usd per share)		$ 59.77	$ 59.77
Aggregate liquidation preference		$ 35,000	$ 35,000
Funds received		35,000	35,000
Fees incurred		52	52
Carrying value of convertible preferred stock		$ 34,947	$ 34,947

Temporary Equity [Line Items]