Annual report pursuant to Section 13 and 15(d)

REVENUE (Details - Contract assets and liabilities)

v3.22.1
REVENUE (Details - Contract assets and liabilities) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]    
Contract assets $ 266,014 $ 104,989
Decrease in contract assets 161,025 (83,131)
Contract liabilities 941,230 1,052,367
Increase in contract liabilities $ (111,137) $ 288,183