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Consolidated Balance Sheets (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Accounts receivable, allowance (in Dollars) $ 194us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 163us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Common stock, par value (in Dollars per share) $ 0us-gaap_CommonStockParOrStatedValuePerShare $ 0us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 43,000,000us-gaap_CommonStockSharesAuthorized 43,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 18,785,055us-gaap_CommonStockSharesIssued 18,737,384us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 18,785,055us-gaap_CommonStockSharesOutstanding 18,737,384us-gaap_CommonStockSharesOutstanding