Schedule of Stock Options Roll Forward (Details) (Parenthetical) - $ / shares |
6 Months Ended | |
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Jun. 30, 2021 |
Jun. 30, 2020 |
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| Stock Option Outstanding [Member] | ||
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] | ||
| Stock option exercise price per share lower limit | $ 2.79 | $ 2.79 |
| Stock option exercise price per share upper limit | 7.50 | $ 8.40 |
| Stock Option Exercisable [Member] | ||
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] | ||
| Stock option exercise price per share lower limit | 2.79 | |
| Stock option exercise price per share upper limit | $ 7.29 | |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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