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Stock Based Compensation - Exercise Price Range (Details) - $ / shares | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Number of Options, Outstanding and Exercisable (in shares) | 107,500 | 107,500 | 215,345
Weighted Average Remaining Contractual Life (In Years) | 1 year 9 months 3 days |  |
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share) | $ 19.64 | $ 19.64 | $ 12.27
$0.00 – $10.00 |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Range of price, lower range limit (in dollars per share) | 0.00 |  |
Range of price, upper range limit (in dollars per share) | $ 10.00 |  |
Number of Options, Outstanding and Exercisable (in shares) | 2,500 |  |
Weighted Average Remaining Contractual Life (In Years) | 2 years 2 months 12 days |  |
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share) | $ 9.00 |  |
$10.01 – $20.00 |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Range of price, lower range limit (in dollars per share) | 10.01 |  |
Range of price, upper range limit (in dollars per share) | $ 20.00 |  |
Number of Options, Outstanding and Exercisable (in shares) | 97,500 |  |
Weighted Average Remaining Contractual Life (In Years) | 1 year 9 months 21 days |  |
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share) | $ 19.32 |  |
$20.01 – $30.00 |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Range of price, lower range limit (in dollars per share) | 20.01 |  |
Range of price, upper range limit (in dollars per share) | $ 30.00 |  |
Number of Options, Outstanding and Exercisable (in shares) | 2,500 |  |
Weighted Average Remaining Contractual Life (In Years) | 1 year 2 months 8 days |  |
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share) | $ 21.80 |  |
$30.01 – $40.00 |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Range of price, lower range limit (in dollars per share) | 30.01 |  |
Range of price, upper range limit (in dollars per share) | $ 40.00 |  |
Number of Options, Outstanding and Exercisable (in shares) | 5,000 |  |
Weighted Average Remaining Contractual Life (In Years) | 11 months 15 days |  |
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share) | $ 30.20 |  |

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- Definition Number of options outstanding, including both vested and non-vested options. + 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 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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + 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 (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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. + References No definition available. + Details
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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. + 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 (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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. + 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 (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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