Quarterly report pursuant to Section 13 or 15(d)

L. COMMITMENTS AND CONTINGENCIES (Details-Sales Tax Accrual)

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L. COMMITMENTS AND CONTINGENCIES (Details-Sales Tax Accrual) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Change in the sales tax accrual    
Balance, Beginning of year $ 26,957 $ 43,400
Sales tax collected 20,449 167,233
Provisions (reversals) 15,553 (10,664)
Payments (54,069) (173,012)
Balance, End of period $ 8,890 $ 26,957