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Stock Options and Warrants (Tables) | 12 Months Ended
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Dec. 31, 2022
Stock Options and Warrants (Tables) [Line Items] |
Schedule of fair values of stock options granted |
|  | 2022 |  |  | 2021 |
Risk-free interest rates |  |  | 1.38% - 2.73 | % |  |  | 0.31% - 0.83 | %
Expected life (in years) |  |  | 2.50 - 4.00 |  |  |  | 2.50 - 4.00 |
Expected volatility |  |  | 71.6% - 72.0 | % |  |  | 73.2% - 75.2 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %
Weighted-average grant date fair value per share |  | $ | 3.97 |  |  | $ | 6.01 |
Schedule of company's stock option and warrants |
|  |  |  |  | Wtd. Avg. |
|  |  |  |  | Exercise |
|  | Options |  |  | Price |
Balance, January 1, 2021 |  |  | 185,900 |  |  | $ | 15.60 |
Granted during the year |  |  | 84,750 |  |  |  | 13.00 |
Exercised during the year |  |  | (11,000 | ) |  |  | 10.41 |
Terminated/Expired during the year |  |  | (12,800 | ) |  |  | 61.70 |
Balance, December 31, 2021 |  |  | 246,850 |  |  | $ | 12.54 |
Granted during the year |  |  | 62,000 |  |  |  | 8.40 |
Exercised during the year |  |  | - |  |  |  | - |
Terminated/Expired during the year |  |  | (5,800 | ) |  |  | 12.04 |
Balance, December 31, 2022 |  |  | 303,050 |  |  | $ | 11.70 |
Exercisable at December 31, 2022 |  |  | 245,466 |  |  | $ | 12.07 |
|  |  |  |  |  |  |  | Wtd. Avg. |
|  |  |  |  | Wtd. Avg. |  |  | Remaining |
|  |  |  |  | Exercise |  |  | Contractual |
|  | Warrants |  |  | Price |  |  | Life (years) |
Balance, January 1, 2021 |  |  | 218,290 |  |  | $ | 29.00 |  |  |  | 1.43 |
Granted during the period |  |  | - |  |  |  | - |  |  |  | - |
Terminated/Expired during the period |  |  | (67,569 | ) |  |  | - |  |  |  | - |
Balance, December 31, 2021 |  |  | 150,721 |  |  | $ | 21.94 |  |  |  | 0.75 |
Granted during the period |  |  | - |  |  |  | - |  |  |  | - |
Terminated/Expired during the period |  |  | (122,721 | ) |  | $ | 23.75 |  |  |  | - |
Balance, December 31, 2022 |  |  | 28,000 |  |  | $ | 14.00 |  |  |  | 0.75 |
Exercisable at December 31, 2022 |  |  | 28,000 |  |  | $ | 14.00 |  |  |  | 0.75 |
Schedule of stock options |
Range of Exercise Price |  | Number Outstanding |  |  | Wtd. Avg, Life |  |  | Wtd. Avg. Exercise Price |
$8.40 - $15.60 |  |  | 303,050 |  |  |  | 2.7 years |  |  | $ | 11.70 |
Range of Exercise Price |  | Number Exercisable |  |  | Wtd. Avg, Life |  |  | Wtd. Avg. Exercise Price |
$8.40 - $15.60 |  |  | 246,466 |  |  |  | 2.4 years |  |  | $ | 12.07 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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