Summary of Significant Accounting Policies - Share-Based Compensation (Details) - Restricted Stock	3 Months Ended	6 Months Ended
Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)
Share-based compensation
Compensation expense before tax	$ 312,000	$ 701,000
Compensation expense after tax	217,000	435,000
Unrecognized compensation expense	$ 3,300,000	$ 3,300,000

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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