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Shareholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2019
Stockholders' Equity Note [Abstract] |
Schedule of Stock Options Outstanding and Exercisable | Presented below is information about stock options outstanding and exercisable as of June 30, 2019 and December 31, 2018:
|  | June 30, 2019 |  |  | December 31, 2018 |
|  | Shares |  |  | Price (1) |  |  | Shares |  |  | Price (1) |
Stock options outstanding |  |  | 320,462 |  |  | $ | 6.52 |  |  |  | 320,462 |  |  | $ | 6.52 |
Stock options exercisable |  |  | 292,962 |  |  | $ | 7.03 |  |  |  | 265,462 |  |  | $ | 7.63 |
| (1) | Represents the weighted average price.
Schedule of Stock Options Activity | The following table summarizes information for stock options outstanding and for stock options exercisable at June 30, 2019:
Options Outstanding |  |  | Options Exercisable |
|  |  | Exercise Price |  |  |  |  |  |  |  |  | Weighted |
Number |  |  | Range |  |  |  |  |  | Remaining |  |  | Number |  |  | Average |
of Shares |  |  | Low |  |  | High |  |  | Weighted Average |  |  | Contractual Term (years) |  |  | of Shares |  |  | Exercise Price |
| 170,000 |  |  | $ | 0.72 |  |  | $ | 1.16 |  |  | $ | 1.00 |  |  |  | 8.3 |  |  |  | 142,500 |  |  | $ | 0.97 |
| 106,290 |  |  |  | 9.00 |  |  |  | 12.48 |  |  |  | 10.62 |  |  |  | 4.8 |  |  |  | 106,290 |  |  |  | 10.62 |
| 29,171 |  |  |  | 13.92 |  |  |  | 17.10 |  |  |  | 14.74 |  |  |  | 3.0 |  |  |  | 29,171 |  |  |  | 14.74 |
| 15,001 |  |  |  | 22.62 |  |  |  | 30.24 |  |  |  | 24.03 |  |  |  | 4.0 |  |  |  | 15,001 |  |  |  | 24.03 |
| 320,462 |  |  | $ | 0.72 |  |  | $ | 30.24 |  |  | $ | 6.52 |  |  |  | 6.5 |  |  |  | 292,962 |  |  | $ | 7.03 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: 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) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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