Annual report pursuant to Section 13 and 15(d)

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details-Product warranties)

v3.22.1
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details-Product warranties) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Beginning balance $ 45,328 $ 58,791
Warranty claims incurred (16,075) (20,499)
Provision charged to expense 17,397 7,036
Ending balance $ 46,650 $ 45,328