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Consolidated Balance Sheet (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Condensed Consolidated Balance Sheets [Abstract]
Trade receivables, allowance for doubtful accounts	$ 10us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent	$ 8us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Common stock, par value	$ 0.10us-gaap_CommonStockParOrStatedValuePerShare	$ 0.10us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized	10,000,000us-gaap_CommonStockSharesAuthorized	10,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	3,395,521us-gaap_CommonStockSharesIssued	3,394,707us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	3,395,521us-gaap_CommonStockSharesOutstanding	3,394,707us-gaap_CommonStockSharesOutstanding

X

- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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-Publisher SEC

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-Name Accounting Standards Codification

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- Definition

Face amount or stated value per share of common stock.

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X

- Definition

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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