FAIR VALUE MEASUREMENTS, Fair Value Measurement Inputs (Details) - Private Warrants [Member]	Jun. 30, 2021 $ / shares	Dec. 31, 2020 $ / shares
Fair Value Measurements [Abstract]
Remaining term in years	2 years 11 months 23 days	3 years 5 months 19 days
Risk-free Rate [Member]
Fair Value Measurements [Abstract]
Measurement input	0.00460	0.00214
Expected Volatility [Member]
Fair Value Measurements [Abstract]
Measurement input	1.232	0.810
Exercise Price [Member]
Fair Value Measurements [Abstract]
Measurement input	11.50	11.50
Fair Value of Common Stock [Member]
Fair Value Measurements [Abstract]
Measurement input	11.38	5.95