Registration of securities issued in business combination transactions

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Details)

v3.21.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Impairment of intangible assets $ 0 $ 0