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Common Stock (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Aug. 26, 2020 | Aug. 25, 2020 | Dec. 31, 2019 | May 14, 2019 | May 13, 2019 | May 06, 2014
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized | 20,000,000 |  | 20,000,000 |  |  |  | 20,000,000 | 20,000,000 | 10,000,000 |
2014 Restricted Stock Plan [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  | 200,000 | 100,000 |  |  |  |
Shares authorized per plan |  |  |  |  |  |  |  |  |  | 100,000
Shares granted |  |  | 83,414 |  |  |  |  |  |  |
Allocated share-based compensation expense | $ 104,000 | $ 91,000 | $ 265,000 | $ 250,000 |  |  |  |  |  |
Shares forfeited and available for reissuance |  |  | 2,446 |  |  |  |  |  |  |
Restricted shares vested during period |  |  | 42,041 |  |  |  |  |  |  |
Granted shares unvested | 38,927 |  | 38,927 |  |  |  |  |  |  |
Shares forfeited |  |  | 100 | 0 |  |  |  |  |  |
Treasury Stock Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount | $ 15,000,000 |  | $ 15,000,000 |  |  |  |  |  |  |
Percentage of issued shares based on closing stock price | 10.20% |  | 10.20% |  |  |  |  |  |  |
Stock repurchase program expiration date |  |  | Mar. 19, 2021 |  |  |  |  |  |  |
Stock repurchased during period, shares |  |  | 92,652 |  |  |  |  |  |  |
Stock repurchased at average price per share | $ 19.37 |  | $ 19.37 |  |  |  |  |  |  |

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