Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details 2)

v3.20.2
Summary of Significant Accounting Policies (Details 2) - USD ($)
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Accounting Policies [Abstract]    
Balance at beginning of period $ 26,933 $ 24,190
Increase in estimated warranty liability 4,650
Warranty expenses incurred (100) (1,737)
Balance at end of period $ 26,833 $ 27,103