Stockholders' Equity (Tables) |
9 Months Ended |
|---|---|
Sep. 30, 2021 | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Stock Option Activity | OptionsOutstanding at December 31, 2019 5,781,884Granted 1,545,000Exercised (15,000)Forfeit/canceled (814,068)Expired (490,264)Outstanding at December 31, 2020 6,007,552Granted 92,500Exercised —Forfeit/canceled (76,406)Expired (92,180)Outstanding at September 30, 2021 5,931,466 |
| Valuation Assumptions | Nine Months Ended September 30, 2021 2020Risk-free interest rate 1.00% 0.49%Expected life (years) 6.00 6.00 Expected dividend yield —% —%Expected volatility 73.99% 78.20% |
| Restricted Stock Unit Activity | SharesOutstanding at December 31, 2019 1,152,248Awarded 284,480Released —Canceled/forfeited/expired —Outstanding at December 31, 2020 1,436,728Awarded 612,179Released —Canceled/forfeited/expired —Outstanding at September 30, 2021 2,048,907 Expected to vest at September 30, 2021 2,048,907Vested at September 30, 2021 1,611,407Unvested at September 30, 2021 —Unrecognized expense at September 30, 2021$ — |
| Stock Options and Warrants [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Stock-Based Compensation Expense | Three Months Ended Nine Months Ended September 30, September 30, 2021 2020 2021 2020General and administrative$ 62,684 $ 61,081 $ 226,572 $ 197,778Sales and marketing 19,522 20,914 83,335 55,512Engineering, research, and development 43,861 39,460 130,519 125,922 $ 126,067 $ 121,455 $ 440,426 $ 379,212 |
| Restricted Stock Units RSU [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Stock-Based Compensation Expense | Three Months Ended Nine Months Ended September 30, September 30, 2021 2020 2021 2020General and administrative$ 65,000 $ 65,002 $ 195,005 $ 130,002Sales and marketing$ 56,635 $ — $ 116,347 $ — $ 121,635 $ 65,002 $ 311,352 $130,002 |