Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Basic:
Net Income	$ 3,636us-gaap_NetIncomeLoss	$ 3,169us-gaap_NetIncomeLoss
Preferred Dividend	(36)	(43)
Earnings Applicable to Common Stock	3,600	3,126
Basic EPS (in dollars per share)	$ 0.22us-gaap_EarningsPerShareBasic	$ 0.20us-gaap_EarningsPerShareBasic
Weighted-average number of basic shares outstanding (in shares)	16,132	15,974
Diluted:
Adjusted Earnings Applicable to Common Stock	3,623	3,156
Diluted EPS (in dollars per share)	$ 0.22us-gaap_EarningsPerShareDiluted	$ 0.20us-gaap_EarningsPerShareDiluted
Weighted-average diluted shares outstanding (in shares)	16,288	16,178
Convertible Preferred Stock $7.00 Series [Member]
Diluted:
Preferred Dividend	17	24
Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares)	115	163
Convertible Preferred Stock $8.00 Series [Member]
Diluted:
Preferred Dividend	$ 6	$ 6
Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares)	41	41

The after-tax amount of any dividends on convertible preferred stock.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible preferred stock using the if-converted method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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