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Shareholders' Equity (Details 1) - Stock Option [Member] | 12 Months Ended
--- | ---
Dec. 31, 2018 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options outstanding | 320,875
Weighted average remaining contractual life (years) | 3 years 7 days
Options exercisable | 157,874
Weighted average Remaining Contractual life of options exercisable (years) | 1 year 11 months 4 days
Exercise Price One [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 2.126
Options outstanding | 30,000
Weighted average remaining contractual life (years) | 2 years 10 months 10 days
Options exercisable | 20,001
Weighted average Remaining Contractual life of options exercisable (years) | 2 years 10 months 10 days
Exercise Price Two [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 2.131
Options outstanding | 67,500
Weighted average remaining contractual life (years) | 3 years 11 months 4 days
Options exercisable | 22,498
Weighted average Remaining Contractual life of options exercisable (years) | 3 years 11 months 4 days
Exercise Price Three [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 2.237
Options outstanding | 26,625
Weighted average remaining contractual life (years) | 1 year 9 months 22 days
Options exercisable | 26,625
Weighted average Remaining Contractual life of options exercisable (years) | 1 year 9 months 22 days
Exercise Price Four [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 2.388
Options outstanding | 108,000
Weighted average remaining contractual life (years) | 4 years 2 months 30 days
Options exercisable |
Weighted average Remaining Contractual life of options exercisable (years) |
Exercise Price Five [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 2.96
Options outstanding | 73,000
Weighted average remaining contractual life (years) | 1 year 5 months 12 days
Options exercisable | 73,000
Weighted average Remaining Contractual life of options exercisable (years) | 1 year 5 months 12 days
Exercise Price Six [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 3.88
Options outstanding | 375
Weighted average remaining contractual life (years) | 10 months 17 days
Options exercisable | 375
Weighted average Remaining Contractual life of options exercisable (years) | 10 months 17 days
Exercise Price Seven [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 4.02
Options outstanding | 5,000
Weighted average remaining contractual life (years) | 6 months 14 days
Options exercisable | 5,000
Weighted average Remaining Contractual life of options exercisable (years) | 6 months 14 days
Exercise Price Eight [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 6.67
Options outstanding | 10,000
Weighted average remaining contractual life (years) | 3 months 11 days
Options exercisable | 10,000
Weighted average Remaining Contractual life of options exercisable (years) | 3 months 11 days
Exercise Price Nine [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price | $ / shares | $ 6.67
Options outstanding | 375
Weighted average remaining contractual life (years) | 3 months 11 days
Options exercisable | 375
Weighted average Remaining Contractual life of options exercisable (years) | 3 months 11 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 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 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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