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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2020
Stockholders' Equity Note [Abstract] |
Schedule of outstanding warrants to shareholders |
Outstanding and exercisable warrants |  |  | Weighted average exercise price of outstanding warrants |  |  | Weighted average Remaining contractual life (years) |
| 400,000 |  |  |  | 3.23 |  |  |  | 1.65 |
Schedule of stock option activity |
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | Number of options |  |  | Weighted- average exercise price |  |  | Number of options |  |  | Weighted average exercise price |  |  | Number of options |  |  | Weighted- average exercise price |
Outstanding - beginning of year |  |  | 246,874 |  |  | $ | 2.26 |  |  |  | 320,875 |  |  | $ | 2.59 |  |  |  | 314,125 |  |  | $ | 3.39 |
Changes during the year: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted |  |  | 45,000 |  |  | $ | 2.55 |  |  |  | 95,000 |  |  | $ | 2.13 |  |  |  | 108,000 |  |  | $ | 2.39 |
Exercised |  |  | (84,618 | ) |  | $ | 2.29 |  |  |  | (125,195 | ) |  | $ | 2.52 |  |  |  | - |  |  | $ | - |
Forfeited |  |  | (36,756 | ) |  | $ | 2.38 |  |  |  | (43,806 | ) |  | $ | 3.65 |  |  |  | (101,250 | ) |  | $ | 4.85 |
Outstanding - year end |  |  | 170,500 |  |  | $ | 2.30 |  |  |  | 246,874 |  |  | $ | 2.26 |  |  |  | 320,875 |  |  | $ | 2.59 |
Vested and expected to vest |  |  | 95,834 |  |  | $ | 2.23 |  |  |  | 148,498 |  |  | $ | 2.41 |  |  |  | 167,874 |  |  | $ | 2.90 |
Exercisable at year end |  |  | 48,834 |  |  | $ | 2.26 |  |  |  | 79,372 |  |  | $ | 2.38 |  |  |  | 157,874 |  |  | $ | 2.89 |
Schedule of options granted to employees and directors |
|  |  |  |  |  |  |  |  |  |  | Weighted average |
|  | Options |  |  | Weighted |  |  | Options |  |  | Remaining |
|  | outstanding |  |  | average |  |  | exercisable |  |  | Contractual |
|  | as of |  |  | remaining |  |  | as of |  |  | life of options |
Exercise |  | December 31, |  |  | contractual |  |  | December 31, |  |  | exercisable |
Price |  | 2020 |  |  | life (years) |  |  | 2020 |  |  | (years) |
2.118 |  |  | 74,166 |  |  |  | 3.83 |  |  |  | 15,834 |  |  |  | 3.83 |
2.131 |  |  | 7,167 |  |  |  | 1.93 |  |  |  | 7,167 |  |  |  | 1.93 |
2.176 |  |  | 10,000 |  |  |  | 4.08 |  |  |  | - |  |  |  | 4.08 |
2.287 |  |  | 2,500 |  |  |  | 3.07 |  |  |  | 2,500 |  |  |  | 3.07 |
2.388 |  |  | 41,667 |  |  |  | 2.54 |  |  |  | 23,333 |  |  |  | 2.54 |
2.494 |  |  | 15,000 |  |  |  | 4.75 |  |  |  | - |  |  |  | 4.75 |
2.775 |  |  | 20,000 |  |  |  | 4.96 |  |  |  | - |  |  |  | 4.96 |
Grand Total |  |  | 170,500 |  |  |  | 3.65 |  |  |  | 48,834 |  |  |  | 2.90 |

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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, 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 (e) -URI http://asc.fasb.org/extlink&oid=120381028&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 (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&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 (d) -URI http://asc.fasb.org/extlink&oid=120381028&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=120381028&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=120381028&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=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
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