Stockholders' Equity - Schedule of Options Outstanding (Details) - $ / shares	6 Months Ended	12 Months Ended
Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, exercisable				$ 1.91
Equity Incentive 2011 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Common shares, outstanding beginning of period	959,864	830,599
Common shares, granted	55,003	179,998
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	0
Common shares, forfeited	(37,074)	(50,733)
Common shares, outstanding end of period	977,793	959,864	830,599
Share-based compensation arrangement by share-based payment award, options, exercisable, number				635,371
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, beginning of period	$ 8.11	$ 8.65
Weighted average exercise price, granted	3.64	6.16
Weighted average exercise price, exercised	0.00	0.00
Weighted average exercise price, forfeited	50.15	10.15
Weighted average exercise price, end of period	$ 8.11	$ 8.65	$ 8.65	$ 6.26
Weighted average exercise price, exercisable				$ 6.24
Weighted average remaining life (years), outstanding	6 years 2 months	6 years 5 months	6 years 6 months
Weighted average remaining life (years), exercisable	5 years 3 months

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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