Expiration date of warrants held.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column A

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Fair value of the warrants issued.

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Payments of initial civil penalty.

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Percentage of warrant description.

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Warrants issued to purchase of common stock.

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Carrying value as of the balance sheet date of the sum of the obligations to contract holders to provide to them an agreed upon rate of return pursuant to the terms of the underlying contract. These contracts represent lending by the contract holders to the entity in return for a guaranteed (primarily fixed) interest rate until maturity, unless called earlier if the contracts provide that option to the contract holders (usually institutions). There is little or no insurance risk for the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.14)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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(a)(1))
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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Incremental percentage increase (decrease) in the stated rate on a debt instrument.

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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
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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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The cash inflow associated with the amount received from holders exercising their stock warrants.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

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Subsequent Event (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended
	Feb. 06, 2017	Jan. 31, 2017	Jul. 31, 2016
Subsequent Event (Textual)
Restricted cash
Loan Agreement [Member]
Subsequent Event (Textual)
Payments of initial civil penalty		1,500
Payments of initial civil penalty		1,500
Restricted cash		$ 1,500
Subsequent Event [Member]
Subsequent Event (Textual)
Interest rate	10.00%
Percentage of warrant description	The Lenders will receive additional warrants on a monthly basis with an aggregate exercise price equal to 10% (dropping to 7.5% in September 2017) of the then outstanding Loan Amount.
Subsequent Event [Member] \| Loan Agreement [Member]
Subsequent Event (Textual)
Borrowed from investors	$ 17,500
Interest rate	5.00%
Interest rate, Increase (Decrease)	10.00%
Warrants expire date	Dec. 29, 2017
Fair value of the warrants issued	$ 4,040,000
Risk-free rate	1.16%
Dividend yield	0.00%
Volatility	96.68%
Expected term	1 year 11 months 1 day
Subsequent Event [Member] \| Class B Common Stock [Member]
Subsequent Event (Textual)
Warrant issued to purchase common stock	252,161
Warrants exercise price	$ 34.70
Warrants expire date	Dec. 31, 2018
Proceeds from aggregate warrants	$ 7,500