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v3.21.1

Common Stock (Details) - USD ($) |  |  | 3 Months Ended | 12 Months Ended | 83 Months Ended
--- | --- | --- | --- | --- | ---
May 04, 2021 | Apr. 29, 2021 | Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020 | Mar. 31, 2021
Employee [Member] | Minimum [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Restricted shares, vesting period |  |  | 1 year |  |  |
Employee [Member] | Maximum [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Restricted shares, vesting period |  |  | 4 years |  |  |
Director [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Restricted shares, vesting period |  |  | 12 months |  |  |
Dividend Reinvestment Plan [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Shares authorized per plan |  |  | 330,750 |  |  | 330,750
2014 Restricted Stock Plan [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Aggregate shares granted |  |  | 200,000 |  |  |
Shares granted |  |  | 85,914 |  |  |
Allocated share-based compensation expense |  |  | $ 132,000 | $ 96,000 |  |
Shares forfeited and available for reissuance |  |  | 0 |  |  | 2,446
Restricted shares vested during period |  |  | 42,041 |  |  |
Granted shares unvested |  |  | 41,427 |  |  | 41,427
Shares forfeited |  |  |  | 100 |  |
Subsequent Event [Member] | Underwritten Public Offering [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Common stock offering |  | $ 65,000,000 |  |  |  |
Underwriters option to purchase additional shares of common stock, period |  | 30 days |  |  |  |
Percentage of underwriters option to purchase additional shares of common stock |  | 15.00% |  |  |  |
Underwriters option to purchase additional shares of common stock | 390,000 | 390,000 |  |  |  |
Number of shares issued | 2,990,000 | 2,600,000 |  |  |  |
Common stock, price per share | $ 25.00 | $ 25.00 |  |  |  |
Number of shares issued upon exercise of underwriters option to purchase additional shares | 390,000 |  |  |  |  |
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 |  |  | 6.60% |  |  | 6.60%
Stock repurchase program expiration date |  |  | Mar. 19, 2022 |  |  |
Stock repurchased during period, shares |  |  | 98,452 | 0 | 92,652 |
Stock repurchased at average price per share |  |  | $ 19.53 |  | $ 19.37 | $ 19.53

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