Stock-Based Compensation (Stock Options Activity) (Details) - $ / shares	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Stock-Based Compensation [Abstract]
Outstanding, Beginning Balance, Number of Options	191,002	223,002
Granted, Number of Options
Exercised, Number of Options	(23,500)	(2,000)
Expired/Forfeited, Number of Options	(25,000)	(30,000)
Outstanding, Ending Balance, Number of Options	142,502	191,002
Options exercisable at end of year, Number of Options	142,502	191,002
Outstanding, Beginning Balance, Weighted Average Exercise Price	$ 9.08	$ 9.30
Granted, Weighted Average Exercise Price
Exercised, Weighted Average Exercise Price	7.75	7.14
Expired/Forfeited, Weighted Average Exercise Price	11.11	14.43
Outstanding, Ending Balance, Weighted Average Exercise Price	8.19	9.08
Options exercisable at end of year, Weighted Average Exercise Price	$ 8.19	$ 9.08

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

For presentations that combine terminations, 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 or that expired.

+ References

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Weighted average price of options that were either forfeited or expired.

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- Definition

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

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- Definition

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

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

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

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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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