Earnings Per Share (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Shares [Abstract]
Basic earnings per share (in shares)	3,772,421	3,764,690	3,753,757
Effect of dilutive stock awards (in shares)	6,945	8,320	10,172
Diluted earnings per share (in shares)	3,779,366	3,773,010	3,763,929
Per Share Amount [Abstract]
Earnings per share, basic	$ 1.63	$ 0.66	$ 0.98
Earnings per share, diluted	$ 1.62	$ 0.66	$ 0.98