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Schedule of Stock Option Activity (Details) $ / shares in Units, shares in Thousands | 6 Months Ended
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Jun. 30, 2021 USD ($) $ / shares shares | Jun. 30, 2020 shares
Share-based Payment Arrangement [Abstract] |  |
Number of stock options, Beginning Balance | shares | 105,086 |
Weighted avg exercise price per share, Beginning Balance | $ 6.25 |
Weighted avg grant date fair value per share, Beginning Balance | $ 6.06 |
Weighted avg remaining contractual life (in years), Beginning Balance | 5 years 4 months 17 days |
Aggregate intrinsic value, Beginning Balance | $ | $ 814,090 |
Number of stock options, Granted | shares | 17,000 | 5,000
Weighted avg exercise price per share, Granted | $ 14.77 |
Weighted avg grant date fair value per share, Granted | $ 10.90 |
Weighted avg remaining contractual life (in years), Granted | 10 years |
Number of stock options, Exercised | shares | (17,763) |
Weighted avg exercise price per share, Exercised | $ 2.30 |
Weighted avg grant date fair value per share, Exercised | $ 2.92 |
Weighted avg remaining contractual life (in years), Exercised | 1 year 8 months 26 days |
Number of stock options, Expired/Forfeited | shares | (1,988) |
Weighted avg exercise price per share, Expired/Forfeited | $ 7.17 |
Weighted avg grant date fair value per share, Expired/Forfeited | $ 6.82 |
Weighted avg remaining contractual life (in years), Expired/Forfeited | 7 years 3 months 10 days |
Number of stock options, Ending Balance | shares | 102,335 |
Weighted avg exercise price per share, Ending Balance | $ 8.31 |
Weighted avg grant date fair value per share, Ending Balance | $ 7.49 |
Weighted avg remaining contractual life (in years), Ending Balance | 6 years 3 months 29 days |
Aggregate intrinsic value, Ending Balance | $ | $ 732,909 |
Number of stock options, Exercisable | shares | 68,657 |
Weighted avg exercise price per share, Exercisable | $ 6.93 |
Weighted avg grant date fair value per share, Exercisable Ending | $ 6.80 |
Weighted avg remaining contractual life (in years), Exercisable Ending | 5 years 14 days |
Aggregate intrinsic value, Exercisable Ending | $ | $ 586,568 |
Number of stock options, Unvested | shares | 33,678 |
Weighted avg exercise price per share, Unvested | $ 11.12 |
Weighted avg grant date fair value per share, Unvested Ending | $ 8.89 |
Weighted avg remaining contractual life (in years), Unvested Ending | 8 years 11 months 12 days |
Aggregate intrinsic value, Unvested Ending | $ | $ 146,341 |

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- Definition The weighted average grant-date fair value of options exercised during the reporting period as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award options expired in period weighted average grant date fair value + References No definition available. + Details
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- Definition The weighted average exercise price of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options outstanding as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for option awards exercised in the period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for option awards granted in the period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Refers to options nonvested for weighted average remaining contractual term. + References No definition available. + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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