Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Condensed Consolidated Balance Sheet Parenthetical [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 108	$ 53
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	75,000us-gaap_CommonStockSharesAuthorized	75,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	31,333us-gaap_CommonStockSharesIssued	31,162us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	31,333us-gaap_CommonStockSharesOutstanding	31,162us-gaap_CommonStockSharesOutstanding

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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.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

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-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

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-Subparagraph (SX 210.5-02.4)

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- Definition

Face amount or stated value per share of common stock.

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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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