Financing (Details 3) - USD ($) shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Face Value	$ 4,665	$ 4,680
Carrying Value	4,665	4,680
Embedded Conversion Feature	$ 33	$ 5
Common Stock Shares (in shares)	48,093,814	48,248,454
Series C Convertible Preferred Stock [Member]
Debt Instrument [Line Items]
Face Value	$ 4,317	$ 4,332
Carrying Value	4,317	4,332
Embedded Conversion Feature	$ 31	$ 5
Common Stock Shares (in shares)	44,505,154	44,659,794
Series D Convertible Preferred Stock [Member]
Debt Instrument [Line Items]
Face Value	$ 348	$ 348
Carrying Value	348	348
Embedded Conversion Feature	$ 2	$ 0
Common Stock Shares (in shares)	3,588,660	3,588,660

Number of shares issued for each share of convertible preferred stock that is converted.

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Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.

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Value of all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by shareholders, which is net of related treasury stock. May be all or a portion of the number of preferred shares authorized. These shares represent the ownership interest of the preferred shareholders.

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