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Share Based Compensation Plan (Details) - USD ($) $ in Millions		12 Months Ended
	Apr. 30, 2017	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Plan (Details) [Line Items]
Share based compensation plan, description	The Company’s 2008 Stock Incentive Plan (the “2008 Plan”), which was approved by the shareholders in April 2008, permitted the grant or award of incentive stock options, nonqualified stock options, stock appreciation rights, and restricted stock for up to 250,000 Common Shares of the Company.
Option exercised shares (in Shares)		26,950
Total intrinsic value		$ 0.3
Cash received from exercised options		$ 0.2
Share-based Payment Arrangement [Member]
Share Based Compensation Plan (Details) [Line Items]
SAR and common restricted stock, shares (in Shares)	500,000
Option awards vesting period		5 years
Option awards contractual terms		10 years
Restricted Stock [Member]
Share Based Compensation Plan (Details) [Line Items]
Compensation cost charged against income		$ 0.4	$ 0.4
Total income tax benefit recognized in income statement for share-based compensation arrangements		0.1	$ 0.1
Total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under plan		$ 0.4
Weighted-average period term		1 year 240 days

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

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