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Shareholders' Equity - Schedule of Stock Options Outstanding and Exercisable (Details)	3 Months Ended
	Mar. 31, 2019 $ / shares shares
Options Outstanding | shares	320,462
Exercise price range, Lower range	$ 0.72
Exercise price range, Upper range	30.24
Weighted Average	$ 6.52
Remaining Contractual Term (Years)	6 years 8 months 12 days
Options Exercisable | shares	279,212
Weighted Average Exercisable	$ 7.31
Exercise Price One [Member]
Options Outstanding | shares	170,000
Exercise price range, Lower range	$ 0.72
Exercise price range, Upper range	1.16
Weighted Average	$ 1.00
Remaining Contractual Term (Years)	8 years 6 months
Options Exercisable | shares	128,750
Weighted Average Exercisable	$ 0.95
Exercise Price Two [Member]
Options Outstanding | shares	106,290
Exercise price range, Lower range	$ 9.00
Exercise price range, Upper range	12.48
Weighted Average	$ 10.62
Remaining Contractual Term (Years)	5 years 1 month 6 days
Options Exercisable | shares	106,290
Weighted Average Exercisable	$ 10.62
Exercise Price Three [Member]
Options Outstanding | shares	29,171
Exercise price range, Lower range	$ 13.92
Exercise price range, Upper range	17.10
Weighted Average	$ 14.74
Remaining Contractual Term (Years)	3 years 2 months 12 days
Options Exercisable | shares	29,171
Weighted Average Exercisable	$ 14.74
Exercise Price Four [Member]
Options Outstanding | shares	15,001
Exercise price range, Lower range	$ 22.62
Exercise price range, Upper range	30.24
Weighted Average	$ 24.03
Remaining Contractual Term (Years)	4 years 3 months 19 days
Options Exercisable | shares	15,001
Weighted Average Exercisable	$ 24.03

X

- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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-Name Accounting Standards Codification
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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

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

+ References

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