6. Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
Dec. 10, 2014	Dec. 09, 2013	Dec. 31, 2014	Dec. 31, 2013
Common Stock, Shares Authorized			20,000,000us-gaap_CommonStockSharesAuthorized	20,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, Par Value			$ 0.01	$ 0.01
Common Stock, Shares Issued			10,153,633us-gaap_CommonStockSharesIssued	10,153,633us-gaap_CommonStockSharesIssued
Common Stock, Shares Outstanding			10,091,822us-gaap_CommonStockSharesOutstanding	10,091,822us-gaap_CommonStockSharesOutstanding
Treasury Stock, Number of Shares Held			61,811us-gaap_TreasuryStockNumberOfSharesHeld	61,811us-gaap_TreasuryStockNumberOfSharesHeld
Common Stock, Dividends, Per Share, Declared	$ 0.49	$ 0.425
Dividends and Interest Paid				$ 4,289us-gaap_DividendsAndInterestPaid
Stock Repurchased During Period, Shares			0	0
April 4, 2012
Stock Repurchase Program, Authorized Amount			1,000
December 2007
Stock Repurchase Program, Authorized Amount			$ 5,000

Aggregate dividends declared during the period for each share of common stock outstanding.

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Face amount or stated value per share of common stock.

+ References

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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The contractual amount of dividends (or interest on participating income bonds) that must be paid for the current period (for example, unpaid cumulative dividends).

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Amount of a stock repurchase plan authorized by an entity's Board of Directors.

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No definition available.

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Number of shares held for each class of treasury stock.

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