Quarterly report pursuant to Section 13 or 15(d)

F. ACCRUED LIABILITIES AND EXPENSES (Tables)

v3.20.1
F. ACCRUED LIABILITIES AND EXPENSES (Tables)
3 Months Ended
Mar. 31, 2020
Payables and Accruals [Abstract]  
Schedule of accrued liabilities and expenses

Accrued liabilities at March 31, 2020 and December 31, 2019 are as follows:

 

    March 31,
2020
  December 31,
2019
Accrued liabilities and expenses     106,915       214,925  
Accrued payroll and payroll taxes     265,309       227,153  
Accrued sales taxes, penalties, and interest     8,890       26,957  
Product warranties     61,742       58,791  
Total accrued liabilities and expenses   $ 442,856     $ 527,826