Stock Compensation - Other (Details) - USD ($)		3 Months Ended	12 Months Ended
Jul. 01, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Compensation
Special stock dividend, rate percent	4.00%
Dividends Payable, Date to be Paid	Jul. 01, 2018
Stock based compensation expense			$ 0	$ 3,000	$ 17,000
Remaining unrecognized compensation expense related to non-vested stock awards				$ 0
Exercised (in shares)		20,909	20,909	0	0
Exercised (per share)		$ 14.20	$ 14.20	$ 0.00	$ 0.00
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year			$ 1,500,000	$ 1,700,000

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

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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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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No definition available.

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- Definition

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

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

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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