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Equity - Summary Information Regarding Options Plan Outstanding and Exercisable (Details)	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Number of Shares Outstanding | shares	2,050,369
Number of Shares Exercisable | shares	2,004,534
Range of Exercise Prices One [Member]
Range of Exercise Prices, Lower Limit	$ 0.14
Range of Exercise Prices, Upper limit	$ 1.06
Number of Shares Outstanding | shares	677,301
Weighted Average Remaining Contractual Life (in years)	5 years 9 months 18 days
Weighted Average Exercise Price	$ 0.74
Number of Shares Exercisable | shares	644,800
Weighted Average Exercise Price, Exercisable	$ 0.76
Range of Exercise Prices Two [Member]
Range of Exercise Prices, Lower Limit	1.68
Range of Exercise Prices, Upper limit	$ 2.49
Number of Shares Outstanding | shares	307,985
Weighted Average Remaining Contractual Life (in years)	4 years 8 months 12 days
Weighted Average Exercise Price	$ 1.74
Number of Shares Exercisable | shares	294,651
Weighted Average Exercise Price, Exercisable	$ 1.75
Range of Exercise Prices Three [Member]
Range of Exercise Prices, Lower Limit	3.51
Range of Exercise Prices, Upper limit	$ 5.00
Number of Shares Outstanding | shares	279,368
Weighted Average Remaining Contractual Life (in years)	3 years 6 months
Weighted Average Exercise Price	$ 4.22
Number of Shares Exercisable | shares	279,368
Weighted Average Exercise Price, Exercisable	$ 4.22
Range of Exercise Prices Four [Member]
Range of Exercise Prices, Lower Limit	5.05
Range of Exercise Prices, Upper limit	$ 5.91
Number of Shares Outstanding | shares	320,000
Weighted Average Remaining Contractual Life (in years)	1 year 4 months 24 days
Weighted Average Exercise Price	$ 5.21
Number of Shares Exercisable | shares	320,000
Weighted Average Exercise Price, Exercisable	$ 5.21
Range of Exercise Prices Five [Member]
Range of Exercise Prices, Lower Limit	6.31
Range of Exercise Prices, Upper limit	$ 7.57
Number of Shares Outstanding | shares	302,356
Weighted Average Remaining Contractual Life (in years)	3 years 2 months 12 days
Weighted Average Exercise Price	$ 6.90
Number of Shares Exercisable | shares	302,356
Weighted Average Exercise Price, Exercisable	$ 6.97
Range of Exercise Prices Six [Member]
Range of Exercise Prices, Lower Limit	7.60
Range of Exercise Prices, Upper limit	$ 11.42
Number of Shares Outstanding | shares	163,359
Weighted Average Remaining Contractual Life (in years)	2 years 9 months 18 days
Weighted Average Exercise Price	$ 8.82
Number of Shares Exercisable | shares	163,359
Weighted Average Exercise Price, Exercisable	$ 8.82

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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=6415400&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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&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=6415400&loc=d3e5070-113901

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X

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

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.

+ 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 (e)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

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

+ 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)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- 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://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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