Stockholders' Equity Note Disclosure [Text Block] | 8. Equity Common Stock 2021 During the year ended December 31, 2021 not 2022 On February 9, 2022, three February 2025. On June 29, 2022, three June 2025. On August 24, 2022, three August 2025. During the nine September 30, 2022 During the nine September 30, 2022 As of the nine September 30, 2022 Stock-based Plans Stock Option Activity The following table summarizes stock option activity for the nine September 30, 2022 Options Outstanding at December 31, 2020 6,007,552 Granted 637,500 Exercised — Forfeited/canceled (272,029 ) Expired (126,557 ) Outstanding at December 31, 2021 6,246,466 Granted 1,195,000 Exercised — Forfeited/canceled (330,623 ) Expired (484,209 ) Outstanding at September 30, 2022 6,626,634 The weighted average exercise price of stock options granted during the period was $0.96 and the related weighted average grant date fair value was $0.61 per share. 2021 On March 26, 2021, March 26, 2021, first March 26, 2031. On May 2, 2021, May 2, 2021, first May 2, 2031. On August 11, 2021, August 11, 2021, first August 11, 2031. 2022 On March 29, 2022, March 29, 2022, first March 29, 2032. On May 16, 2022, three May 16, 2022, first May 16, 2032. On September 22, 2022, September 2022, first September 29, 2032. Stock-Based Compensation Expense from Stock Options and Warrants The impact on our results of operations of recording stock-based compensation expense for the three nine September 30, 2022 2021 Three Months Ended Nine Months Ended September 30, September 30, 2022 2021 2022 2021 General and administrative $ 65,800 $ 62,684 $ 571,462 $ 226,572 Sales and marketing 20,972 19,522 56,183 83,335 Engineering, research, and development 41,185 43,861 171,734 130,519 $ 127,957 $ 126,067 $ 799,379 $ 440,426 Valuation Assumptions The fair value of each stock option award was calculated on the date of the grant using the Black-Scholes option pricing model. The following weighted average assumptions were used for the nine September 30, 2022 2021 Nine Months Ended September 30, 2022 2021 Risk-free interest rate 2.47 % 1.00 % Expected life (years) 5.90 6.00 Expected dividend yield — % — % Expected volatility 69.23 % 73.99 % The risk-free interest rate assumption is based upon published interest rates appropriate for the expected life of our employee stock options. The expected life of the stock options represents the weighted-average period that the stock options are expected to remain outstanding and was determined based on the historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards, vesting schedules and expectations of future employee behavior as influenced by changes to the terms of the Company's stock-based awards. The dividend yield assumption is based on our history of not no The expected volatility in 2022 2021 Restricted stock units The following table summarizes restricted stock unit activity under our stock-based plans for the year ended December 31, 2021 nine September 30, 2022 Shares Outstanding at December 31, 2020 1,436,728 Awarded 654,663 Released — Canceled/forfeited/expired (406,250 ) Outstanding at December 31, 2021 1,685,141 Awarded 197,688 Released — Canceled/forfeited/expired — Outstanding at September 30, 2022 1,882,829 Expected to vest at September 30, 2022 1,882,829 Vested at September 30, 2022 1,882,829 Unvested at September 30, 2022 — Unrecognized expense at September 30, 2022 $ — 2021 On March 26, 2021, first 2021. March 26, 2024, On March 26, 2021, March 26, 2021, December 31, 2022. On May 12, 2021, second 2021. May 2, 2024, On August 11, 2021, third 2021. August 11, 2024, On December 15, 2021, December 15, 2024, During the year ended December 31. 2021 2022 On March 29, 2022, December 15, 2024, On May 16, 2022, December 15, 2024, On September 30, 2022, December 15, 2024, In the nine September 30, 2022 Stock Based Compensation from Restricted Stock The impact on our results of operations of recording stock-based compensation expense for restricted stock units for the three nine September 30, 2022 2021 Three Months Ended Nine Months Ended September 30, September 30, 2022 2021 2022 2021 General and administrative $ 65,002 $ 65,000 $ 195,005 $ 195,005 Sales and marketing $ — $ 56,635 $ — $ 116,347 $ 65,002 $ 121,635 $ 195,005 $ 311,352 As of September 30, 2022 Warrants The following table summarizes investor warrants as of September 30, 2022 December 31, 2021 2020 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Outstanding at December 31, 2020 2,691,459 $ 1.99 2.94 Granted 580,231 $ — — Exercised — $ — — Canceled/forfeited/expired (25,000 ) $ — — Outstanding at December 31, 2021 3,246,690 $ 2.26 3.59 Granted 5,928,261 $ — — Exercised (3,188,190 ) $ — — Canceled/forfeited/expired — $ — — Outstanding at September 30, 2022 5,986,761 $ 2.72 2.02 2021 On June 30, 2021, On August 11, 2021, 30 As of September 30, 2021, 2023. 2024. 2022 On February 9, 2022, three February 2025. February 9, 2022. On June 29, 2022, six three June 2025, On August 24, 2022, five three August 2025, During the nine September 30, 2022 September 30, 2022 |