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Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Allocated share-based compensation expense	$ 568	$ 527	$ 1,830	$ 1,600
Compensation cost not yet recognized	2,500		$ 2,500
Period for recognition			1 year 8 months 12 days
Percentage of annual retainer received in either common stock or deferred stock rights			100.00%
Plan 2013
Number of shares authorized (in shares)					750,000
Director
Common stock shares reserved for future grants (in shares)			180,000
Voting and Nonvoting Common Stock | Voting and Nonvoting Common Stock
Allocated share-based compensation expense	$ 568	$ 527	$ 1,830	$ 1,600

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