4. Net Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Net Earnings Available to Common Shareholders
Basic earnings per common share	$ 1,601	$ 1,311
Effect of dilutive securities: Stock options	0	0
Diluted earnings per common share	$ 1,601	$ 1,311
Common Shares
Basic earnings per common share (in shares)	5,613,495	5,544,160
Effect of dilutive securities: Stock options (in shares)	4,778	0
Diluted earnings per common share (in shares)	5,618,273	5,544,160
Per Share Amount
Basic earnings per common share (in dollars per share)	$ 0.29	$ 0.24
Diluted earnings per common share (in dollars per share)	$ 0.29	$ 0.24

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The amount resulting from the "as if" assumption that stock options or restrictive stock units were exercised for purposes of computing the dilutive effect of convertible securities.

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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 share based payment arrangements using the treasury stock method.

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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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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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