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