Benefit Plans (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Allocated share-based compensation expense	$ 555	$ 478
Compensation cost not yet recognized	$ 3,600
Period for recognition	2 years 1 month
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	$ 555	$ 478

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Number of shares authorized for issuance under share-based payment arrangement.

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Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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