Stock Compensation - Other (Details) - USD ($)		3 Months Ended	12 Months Ended
Jul. 01, 2019	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock Compensation
Special stock dividend, rate percent	4.00%
Dividends Payable, Date to be Paid	Jul. 01, 2019
Stock based compensation expense			$ 0	$ 0	$ 3,000
Remaining unrecognized compensation expense related to non-vested stock awards					$ 0
Exercised (in shares)		21,745	0	21,745	0
Exercised (per share)		$ 13.65	$ 0.00	$ 13.65	$ 0.00
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year			$ 1,800,000	$ 1,300,000

The percentage rate used to calculate dividend payments on common stock.

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

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Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

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Date the declared dividend will be paid, in CCYY-MM-DD format.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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