Benefit Plans (Stock Option Activity) (Details) - $ / shares	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Balance	16,450	49,700
Issued
Exercised	(16,450)	(33,250)
Forfeited
Expired
Balance		16,450
Beginning balance, Weighted Average Exercise Price	$ 10.31	$ 9.18
Issued, Weighted Average Exercise Price
Exercised, Weighted Average Exercise Price	10.31	8.63
Forfeited, Weighted Average Exercise Price
Expired, Weighted Average Exercise Price
Ending balance, Weighted Average Exercise Price		$ 10.31

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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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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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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

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