Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator [Abstract]
Net income		$ 5,036	$ 5,126	$ 10,087	$ 10,242
Denominator [Abstract]
Weighted-average shares outstanding for basic earnings per share (in shares)		9,232,509	10,187,500	9,598,232	10,187,500
Dilutive effect of stock compensation (in shares)	[1]	0	5,149	0	0
Denominator for diluted earnings per share (in shares)		9,232,509	10,192,649	9,598,232	10,187,500
Earnings per common share [Abstract]
Basic (in dollars per share)		$ 0.54	$ 0.50	$ 1.05	$ 1.00
Diluted (in dollars per share)		$ 0.54	$ 0.50	$ 1.05	$ 1.00
Nonqualified Stock Options [Member]
Antidilutive securities [Abstract]
Antidilutive shares excluded from the calculation of earnings per share (in shares)		186,500		186,500	163,000
Restricted Stock Units [Member]
Antidilutive securities [Abstract]
Antidilutive shares excluded from the calculation of earnings per share (in shares)		130,000	130,000	130,000	130,000

[1] Nonqualified stock options outstanding of 186,500 and 163,000, and restricted stock units of 104,000 and 130,000 as of June 30, 2020 and 2019, respectively, have not been included in diluted earnings per share for the six months ended June 30, 2020 and 2019, and nonqualified stock options of 186,500 as of June 30, 2020, and restricted stock units of 104,000 and 130,000 as of June 30, 2020 and 2019, respectively, have not been included in diluted earnings per share for the three months ended June 30, 2020 and 2019 because to do so would have been antidilutive for the periods presented.