XML 87 R69.htm IDEA: XBRL DOCUMENT v3.20.4
Lease (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
ASSETS    
Operating lease right-of-use assets $ 1,772,747 $ 524,445
LIABILITIES    
Operating lease liabilities (current) 316,178 304,248
Operating lease liabilities (noncurrent) $ 1,456,567 $ 235,555