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Equity (Details 2) | 12 Months Ended
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Dec. 31, 2018 $ / shares shares
Option Indexed to Issuer's Equity [Line Items] |
Outstanding options, Number | 881,867
Exercisable options, Number | 855,667
Stock Option Two [Member] |
Option Indexed to Issuer's Equity [Line Items] |
Outstanding options, Average exercise price | $ / shares | $ 2.30
Outstanding options, Number | 94,000
Outstanding options, Average remaining contractual life (years) | 3 years
Exercisable options, Average exercise price | $ / shares | $ 2.30
Exercisable options, Number | 94,000
Exercisable options, Average remaining contractual life (years) | 3 years
Stock Option Three [Member] |
Option Indexed to Issuer's Equity [Line Items] |
Outstanding options, Average exercise price | $ / shares | $ 5.31
Outstanding options, Number | 131,000
Outstanding options, Average remaining contractual life (years) | 4 years 9 months 7 days
Exercisable options, Average exercise price | $ / shares | $ 5.31
Exercisable options, Number | 104,800
Exercisable options, Average remaining contractual life (years) | 4 years 9 months 7 days
Stock Option Four [Member] |
Option Indexed to Issuer's Equity [Line Items] |
Outstanding options, Average exercise price | $ / shares | $ 1.64
Outstanding options, Number | 159,000
Outstanding options, Average remaining contractual life (years) | 5 years 7 months 21 days
Exercisable options, Average exercise price | $ / shares | $ 1.64
Exercisable options, Number | 159,000
Exercisable options, Average remaining contractual life (years) | 5 years 7 months 21 days
Stock Option Five [Member] |
Option Indexed to Issuer's Equity [Line Items] |
Outstanding options, Average exercise price | $ / shares | $ 1.88
Outstanding options, Number | 390,867
Outstanding options, Average remaining contractual life (years) | 6 years 7 months 6 days
Exercisable options, Average exercise price | $ / shares | $ 1.88
Exercisable options, Number | 390,867
Exercisable options, Average remaining contractual life (years) | 6 years 7 months 6 days
Stock Option One [Member] |
Option Indexed to Issuer's Equity [Line Items] |
Outstanding options, Average exercise price | $ / shares | $ 1.45
Outstanding options, Number | 107,000
Outstanding options, Average remaining contractual life (years) | 7 years 2 months 19 days
Exercisable options, Average exercise price | $ / shares | $ 1.45
Exercisable options, Number | 107,000
Exercisable options, Average remaining contractual life (years) | 7 years 2 months 19 days

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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 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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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 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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