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Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ 7,657us-gaap_NetIncomeLoss	$ 8,465us-gaap_NetIncomeLoss	$ 8,403us-gaap_NetIncomeLoss
Basic EPS weighted average shares outstanding	3,645us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	3,627us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	3,608us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Dilutive effect of stock options	12us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment	5us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment	6us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Diluted EPS weighted average shares outstanding	3,657us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	3,632us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	3,614us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Earnings Per Share, Basic	$ 2.10us-gaap_EarningsPerShareBasic	$ 2.33us-gaap_EarningsPerShareBasic	$ 2.33us-gaap_EarningsPerShareBasic
Earnings Per Share, Diluted	$ 2.10us-gaap_EarningsPerShareDiluted	$ 2.33us-gaap_EarningsPerShareDiluted	$ 2.33us-gaap_EarningsPerShareDiluted

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

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