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Stock-Based Compensation (Schedule of Stock Option Activity) (Details) - Employee Stock Option [Member] - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, Outstanding at beginning of period (in shares)	62,086	61,327
Number of shares, Granted (in shares)	1,202	12,443
Number of shares, Exercised (in shares)	(859)	(450)
Number of shares, Outstanding at end of period (in shares)	62,429	73,320
Number of shares, Exercisable at end of period (in shares)	61,828	67,099
Weighted Average Exercise Price, Outstanding at beginning of period	$ 8.29	$ 8.05
Weighted Average Exercise Price, Granted	10.99	11.12
Weighted Average Exercise Price, Exercised	6.64	6.64
Weighted Average Exercise Price, Outstanding at end of period	8.36	8.58
Weighted Average Exercise Price, Exercisable at end of period	$ 8.34	$ 8.35

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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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Net 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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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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