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Stockholders' Equity (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Stockholders' Equity Note [Abstract] |  |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
Expected volatility |  | 197.0 | %
Expected life of option (in years) |  | 5.2 |
Risk free interest rate |  | 0.88 | %
Expected dividend yield |  | 0.0 | %
|  | December 31,
|  | 2020 |  | 2019
Expected volatility |  | 188.0 | % |  | 171.0 – 177.0 | %
Expected life of option |  | 5.3 |  |  | 5.0 – 6.3 |
Risk free interest rate |  | 0.6 | % |  | 1.7 – 2.5 | %
Expected dividend yield |  | 0.0 | % |  | 0.0 | %
Share-based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Number of Options |  | Weighted Average Exercise Price
Stock Options: |  |  |  |  |  |
Outstanding at January 1, 2021 |  | 622,036 |  |  | $ | 5.53
Granted |  | 25,220 |  |  |  | 3.20
Forfeited or canceled, during the period |  | (58,134 | ) |  |  | 4.57
Expired, during the period |  | (715 | ) |  |  | 7.00
Outstanding at March 31, 2021 |  | 588,407 |  |  | $ | 5.52
Exercisable at March 31, 2021 |  | 434,387 |  |  | $ | 6.46
|  | Number of Options |  | Weighted Average Exercise Price
Outstanding at January 1, 2020 |  | 1,021,243 |  |  | $ | 4.82
Granted |  | 24,000 |  |  |  | 0.80
Exercised during period |  | — |  |  |  | —
Forfeited or canceled, during the period |  | (421,777 | ) |  |  | 3.52
Expired, during the period |  | (1,430 | ) |  |  | 10.50
Outstanding at December 31, 2020 |  | 622,036 |  |  | $ | 5.53
Exercisable at December 31, 2020 |  | 479,702 |  |  | $ | 6.28
Schedule of stock-based compensation expense |
|  | Three Months Ended March 31,
|  | 2021 |  | 2020
Cost of revenue |  | $ | 182 |  | $ | 373
Sales and marketing expense |  |  | 7 |  |  | 20
Product development expense |  |  | 3,044 |  |  | 7,381
General and administrative expense |  |  | 28,135 |  |  | 81,432
Total stock compensation expense |  | $ | 31,368 |  | $ | 89,206
|  | Year Ended December 31,
|  | 2020 |  | 2019
Cost of revenue |  | $ | 1,527 |  | $ | 1,478
Sales and marketing expense |  |  | 90 |  |  | 130
Product development expense |  |  | 19,491 |  |  | 117,375
General and administrative expense |  |  | 222,089 |  |  | 710,013
Total stock-based compensation expense |  | $ | 243,197 |  | $ | 828,996

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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