CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Allowance for doubtful accounts	$ 86	$ 40
Par value of common stock (in dollars per share)	$ 0us-gaap_CommonStockNoParValue	$ 0us-gaap_CommonStockNoParValue
Common Stock, shares authorized	75,000us-gaap_CommonStockSharesAuthorized	75,000us-gaap_CommonStockSharesAuthorized
Common Stock, shares issued	23,786us-gaap_CommonStockSharesIssued	23,786us-gaap_CommonStockSharesIssued
Common Stock, shares outstanding	23,786us-gaap_CommonStockSharesOutstanding	23,786us-gaap_CommonStockSharesOutstanding
Convertible Preferred Stock
Par value of convertible preferred stock (in dollars per share)	$ 0	$ 0
Convertible preferred stock, shares authorized	39	39
Convertible preferred stock, shares reserved	39	39
Convertible preferred stock, shares issued	12	12
Convertible preferred stock, shares outstanding	12	12

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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