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Note 10 - Commitments and Contingencies (Details Textual) |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
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Mar. 01, 2021 USD ($) | Jan. 01, 2021 USD ($) | Jul. 07, 2020 USD ($) | Feb. 25, 2020 USD ($) shares | Sep. 26, 2019 USD ($) ft² | Jun. 01, 2019 USD ($) ft² | Mar. 11, 2019 USD ($) ft² | Oct. 05, 2017 | Aug. 01, 2017 USD ($) | May 25, 2016 | Sep. 30, 2020 USD ($) | May 31, 2013 USD ($) ft² | Dec. 31, 2016 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2018 shares | Jul. 18, 2017 shares | Aug. 06, 2014 shares
Lessee, Operating Lease, Liability, to be Paid, Total |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 929,528 |  |  |
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year |  |  |  |  |  |  |  |  |  |  |  |  |  | 114,928 |  |  |
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year |  |  |  |  |  |  |  |  |  |  |  |  |  | 58,000 |  |  |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio |  |  |  |  |  |  |  | 10 |  | 10 |  |  |  |  |  |  |
Lawsuit Against Aptito.com, Inc. and Shareholders of Aptito.com, Inc. [Member] | Aptito, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Parent's Shares in Dispute Related to Acquisition (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,000 | 125,000 | 125,000
Lease Agreement for Office at Florida [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  |  |  | 5,875 |  |  |  |  |  |  | 4,101 |  |  |  |  |
Periodic Lease and Rental Expense, Per Month |  | $ 16,156 | $ 11,500 |  | $ 16,156 |  |  |  | $ 14,354 |  |  | $ 16,800 | $ 19,448 |  |  |  |
Periodic Lease and Rental Expense, Annual |  |  |  |  | $ 193,875 |  |  |  | $ 172,248 |  |  |  | $ 233,377 |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) |  |  |  |  | 5 years |  |  |  | 5 years |  | 4 years |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total |  |  |  |  |  |  |  |  |  |  | $ 65,600 |  |  |  |  |  |
Lessee, Operating Lease, Monthly Rent |  |  |  |  |  |  |  |  |  |  | 2,954 |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, Upon Modification |  |  |  |  |  |  |  |  |  |  | 22,700 |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year |  |  |  |  |  |  |  |  |  |  | 20,100 |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, First Quarter Year One |  |  |  |  |  |  |  |  |  |  | $ 22,800 |  |  |  |  |  |
Additional Periodic Lease and Rental Expense, Per Month | $ 2,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Lease, Deferred Rent, Interest Rate |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |
Lease Agreement for Office in Yekaterinburg, Russia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  |  |  |  | 1,654 |  |  |  |  |  |  |  |  |  |  |
Periodic Lease and Rental Expense, Annual |  |  |  |  |  | $ 21,000 |  |  |  |  |  |  |  |  |  |  |
Lease Agreement for Office in Moscow Russia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  |  |  |  |  | 1,600 |  |  |  |  |  |  |  |  |  |
Periodic Lease and Rental Expense, Annual |  |  |  |  |  |  | $ 50,900 |  |  |  |  |  |  |  |  |  |
Processing Provider 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Monthly Fees Per Month |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 150,000 |  |  |
Chief Legal Officer and Corporate Secretary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual Base Salary |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement, Term (Year) |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement, Renewal Term (Year) |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement, Signing Bonus, Shares (in shares) | shares |  |  |  | 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement, Bonus Percent |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in the first quarter of the year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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