Stock-Based Compensation (Details 1)	12 Months Ended
Dec. 31, 2016 $ / shares shares
Weighted Average Remaining Contractual Life	4 years 7 months 6 days
Employee Stock Option [Member]
Outstanding at end of year \| shares	2,513,861
Weighted Average Remaining Contractual Life	6 years 7 months 28 days
Wtd. Avg. Exercise Price
Outstanding at end of year \| $ / shares	$ 1.78
PriceRange1 [Member] \| Employee Stock Option [Member]
Outstanding at end of year \| shares	17,855
Weighted Average Remaining Contractual Life	2 years 2 months 1 day
Wtd. Avg. Exercise Price
Outstanding at end of year \| $ / shares	$ 0.60
PriceRange2 [Member] \| Employee Stock Option [Member]
Outstanding at end of year \| shares	631,366
Weighted Average Remaining Contractual Life	2 years 9 months 18 days
Wtd. Avg. Exercise Price
Outstanding at end of year \| $ / shares	$ 1.14
PriceRange3 [Member] \| Employee Stock Option [Member]
Outstanding at end of year \| shares	942,739
Weighted Average Remaining Contractual Life	7 years 10 months 6 days
Wtd. Avg. Exercise Price
Outstanding at end of year \| $ / shares	$ 1.71
PriceRange4 [Member] \| Employee Stock Option [Member]
Outstanding at end of year \| shares	921,901
Weighted Average Remaining Contractual Life	8 years 2 months 8 days
Wtd. Avg. Exercise Price
Outstanding at end of year \| $ / shares	$ 2.31

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock 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)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- References

No definition available.

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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=6415400&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=6415400&loc=d3e5070-113901

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