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Stock-Based Compensation Plans (Summary of Nonvested Stock Options) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2016
Awards
Nonvested, beginning	3,450
Granted	1,000
Vested	(1,350)
Forfeited	0
Nonvested, ending	3,100
Weighted- Average Grant Date Fair Value
Nonvested, beginning	$ 6.11
Granted	7.78	$ 5.17
Vested	6.85
Forfeited	0.00
Nonvested, ending	$ 6.32

X

- Definition

Non Union Employees [Member]

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Number of non-vested options outstanding.

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