Stock-Based Compensation and Stock Awards - Director Stock Compensation Awards - Additional Information (Details) - DSA - USD ($)	1 Months Ended	12 Months Ended
Jun. 30, 2014	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fees in lieu of cash (equal to) (as a percentage)	125.00%
Director stock compensation awards expense		$ 1,464,590	$ 782,125	$ 460,884
Income tax benefit recognized		208,106	$ 58,901	$ 81,879
Unrecognized compensation expense related to share based compensation		$ 957,281
Period of recognition for unrecognized compensation expense related to nonvested stock options (in years)		1 year
Antidilutive securities (in shares)		48,676

Percentage Of Fees In Lieu Of Cash To Be Received As Share Based Compensation.

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

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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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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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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