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Stock Options (Details) - Stock Options [Member] - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Number of Options |  |
Begining balance, Outstanding | 3,120,000 | 1,615,000
Granted | 1,441,250 | 2,040,000
Exercised | (130,000) | (485,000)
Expired | (325,000) | (50,000)
Ending balance, Outstanding | 4,106,250 | 3,120,000
Exercisable | 1,891,250 |
Weighted average exercise price |  |
Beginning balance, Outstanding | $ 1.12 | $ 1.09
Granted | 0.96 | 1.09
Exercised | 1.27 | 0.89
Expired | 1.34 | 1.08
Ending balance, Outstanding | 1.04 | $ 1.12
Exercisable | $ 1.02 |
Outstanding, Weighted average remaining contractual life (years) | 3 years 2 months 12 days | 3 years 7 months 6 days
Exercisable, Weighted average remaining contractual life (years) | 2 years 10 months 25 days |
Exercisable, Aggregate intrinsic value | $ 1,035,900 |

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- Definition Weighted average per share amount that are exercisable. + References No definition available. + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + 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)(iv)(4) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + 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=96867065&loc=d3e5070-113901 Reference 2: 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=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + 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) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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