Stock-Based Compensation (Details 1) - Employee Stock Option [Member]	12 Months Ended
Dec. 31, 2017 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Outstanding at December 31, 2017 \| shares	2,390,012
Weighted Average Remaining Contractual Life	6 years 2 months 19 days
Weighted Average Exercise Price \| $ / shares	$ 1.85
Price Range 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Outstanding at December 31, 2017 \| shares	17,855
Weighted Average Remaining Contractual Life	1 year 2 months 1 day
Weighted Average Exercise Price \| $ / shares	$ 0.60
Price Range 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Outstanding at December 31, 2017 \| shares	645,108
Weighted Average Remaining Contractual Life	2 years 9 months
Weighted Average Exercise Price \| $ / shares	$ 1.23
Price Range 3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Outstanding at December 31, 2017 \| shares	1,632,408
Weighted Average Remaining Contractual Life	7 years 6 months 22 days
Weighted Average Exercise Price \| $ / shares	$ 1.93
Price Range 4 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Outstanding at December 31, 2017 \| shares	94,641
Weighted Average Remaining Contractual Life	7 years 10 months 20 days
Weighted Average Exercise Price \| $ / shares	$ 4.94

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.

No definition available.

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- Definition

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

+ References

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)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ References

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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

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.

+ References

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

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