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Other Financial Statement Information (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Supplemental Cash Flow Information:
Cash paid for interest	$ 640	$ 363
Cash paid for taxes	5	11
Non-Cash Investing and Financing Activities
Noncash preferred stock dividends	246	463
Issuance of notes in exchange for accounts payable		288
Issuance of stock upon conversion of preferred stock	2,246	307
Issuance of warrants with term loan extensions	2,218	361
Issuance of stock in exchange for accounts payable		$ 86

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in non cash.

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Issuance of warrants with term loan extensions.

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The value of the financial instrument issued [noncash or part noncash] in the conversion of stock. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Amount of cash paid, after deduction of cash paid for capitalized interest, for interest. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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