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Stock Compensation Plan (Details Narrative) - USD ($) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 01, 2020 | Aug. 01, 2019 | Aug. 01, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | May 20, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock compensation vesting period description |  |  |  | four years |  |  |
Share-based compensation |  |  |  | $ 304,000 | $ 286,000 | $ 223,000 |
Recognized tax benefit from compensation expense |  |  |  | $ 105,000 | $ 71,000 | $ 194,000 |
Maximum stock options exercise price of fair market value of shares on date of grant rate |  |  |  | 100.00% |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount |  |  |  | $ 193,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |  |  |  | 64,292 |  |  |
2015 Stock Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock compensation vesting period description |  | vest ratably over four years |  |  |  |  |
Common stock, capital shares reserved for future issuance |  |  |  |  |  |  | 335,024
Number of restricted common stock shares | 18,218 | 3,766 | 12,479 |  |  |  |
Share price | $ 19.62 | $ 21.26 | $ 25.06 |  |  |  |
Options to acquire shares |  | 71,007 |  |  |  |  |

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