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2. Basis of Presentation and Summary of signficiant accounting policies (Details - Fair value) - Fair Value Inputs Level 3 [Member] - Fair Value Measurements Recurring [Member] - USD ($)
Jun. 30, 2021
Mar. 31, 2021
Conversion feature liabilities $ 0 $ 776,507
Redeemable preferred stock 0 433,714
Warrant liabilities $ 0 $ 905,713