Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Allowance for doubtful accounts net	$ 149	$ 139
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized	200,000,000us-gaap_CommonStockSharesAuthorized	26,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued	24,685,604us-gaap_CommonStockSharesIssued	3,953,314us-gaap_CommonStockSharesIssued
Common stock, outstanding	24,685,604us-gaap_CommonStockSharesOutstanding	3,953,314us-gaap_CommonStockSharesOutstanding
Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	0	16,986,384
Preferred stock, issued	0	15,082,141
Preferred stock, outstanding	0	15,082,141

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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