Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Statutory federal income tax rates (Details)

v3.21.1
INCOME TAXES - Statutory federal income tax rates (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Percent [Abstract]    
Tax expense at the federal statutory rate 21.00% 21.00%
State taxes, net of federal benefit 3.50% 13.00%
Permanent differences (10.30%) (5.80%)
True-up (4.40%)  
Change in valuation allowance (9.80%) (28.20%)
Effective income tax rate 0.00% 0.00%