Earnings Per Common Share And Share Awards [Line Items]

No definition available.

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- Definition

Number of stock options or SARs granted where exercise price was less than market price on date of grant.

+ References

No definition available.

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- Definition

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.

+ References

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Net number of share options (or share units) granted during the period.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

The number of shares purchased on the open market during the period for issuance to employees under the plan.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Earnings Per Common Share And Share Awards (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Earnings Per Common Share And Share Awards [Line Items]
Anti-dilutive shares excluded from computation of diluted earnings per share	9,000	4,000	4,000	4,000
SARs expiration period			7 years
SARs vesting period			1 year
Number of SARs granted where exercise price was less than market price on date of grant			0	0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 177,000		$ 177,000
Maximum
Earnings Per Common Share And Share Awards [Line Items]
Maximum shares of Company stock to be granted to key employees or directors			250,000
StockAppreciationRightsShareSettledSARS [Member]
Earnings Per Common Share And Share Awards [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures			4,000	4,000	4,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 78.61	$ 55.40