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Stock-Based Compensation (Details Textual) - USD ($) $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 17, 2020 | Mar. 15, 2016 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | May 12, 2020 | May 17, 2016
Stock-Based Compensation (Textual) |  |  |  |  |  |  |
Unrecognized compensation cost |  |  | $ 1,600 |  |  |  |
Recognized weighted average period |  |  | 2 years 6 months |  |  |  |
Fair value of stock option grants |  |  | $ 1,200 | $ 1,200 | $ 973 |  |
Stock Compensation Plan [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Textual) |  |  |  |  |  |  |
Aggregate intrinsic value outstanding |  |  | 3,700 | 8,600 |  |  |
Aggregate intrinsic value options exercisable at year-end |  |  | $ 3,300 | $ 6,900 |  |  |
Two Thousand Ten Incentive Plan [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Textual) |  |  |  |  |  |  |
Number of stock option available for grant |  |  | 566,025 |  |  |  |
Adjusted percentage of stock dividends |  |  | 10.00% |  |  |  |
Two Thousand Sixteen Equity Incentive Plan [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Textual) |  |  |  |  |  |  |
Number of stock option available for grant |  | 400,000 | 123,827 |  |  |  | 50,000
Option expiration period |  | 10 years |  |  |  |  |
Two Thousand Twenty Equity Incentive Plan [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Textual) |  |  |  |  |  |  |
Number of stock option available for grant | 450,000 |  |  |  |  | 450,000 |
Option expiration period | 10 years |  |  |  |  |  |
Restricted Stock Plan [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Textual) |  |  |  |  |  |  |
Number of stock option available for grant |  |  | 25,524 |  |  |  |
Unrecognized compensation cost |  |  | $ 700,000 |  |  |  |
Recognized weighted average period |  |  | 2 years 6 months |  |  |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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 (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + 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 (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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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- 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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- Definition Period from grant date that an equity-based award expires, 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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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