Fair Value Measurement of Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Fair value disclosures
Convertible notes - short term	$ 13,137
Convertible notes	$ 12,660
Fair value assumptions
Volatility rate	60.00%
Risk-free interest rate	2.09%
Nonrecurring \| Carrying Value
Fair value disclosures
Fair value of liabilities	$ 25,797	$ 1,653
Nonrecurring \| Fair Value
Fair value disclosures
Fair value of liabilities	24,387	1,653
Nonrecurring \| Level 3 \| Carrying Value
Fair value disclosures
Convertible notes - short term	13,137
Convertible notes	12,660
Loan payable		1,653
Nonrecurring \| Level 3 \| Fair Value
Fair value disclosures
Convertible notes - short term	13,137
Convertible notes	$ 11,250
Loan payable		$ 1,653
Fair value assumptions
Time to maturity	4 years 7 months 6 days
Volatility rate	60.00%
Risk-free interest rate	1.83%

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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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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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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Fair value of financial and nonfinancial obligations.

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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