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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2020
Stockholders' Equity Note [Abstract] |
Schedule of Stock Options Activity | All shares and prices per share have been adjusted for a one share-for-ten shares reverse stock split that took effect on January 6, 2020:
|  | 2020 |  |  | 2019 |
|  | Shares |  |  | Price (1) |  |  | Shares |  |  | Price (1) |
Outstanding, beginning of year |  |  | 31,533 |  |  | $ | 66.04 |  |  |  | 32,033 |  |  | $ | 65.20 |
Granted |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |  |  |  | (500 | ) |  |  | 11.60 |
Expired |  |  | (166 | ) |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Outstanding, end of year |  |  | 31,367 |  |  | $ | 64.78 |  |  |  | 31,533 |  |  | $ | 66.04 |
Exercisable, end of year |  |  | 31,367 |  |  | $ | 64.78 |  |  |  | 31,533 |  |  | $ | 66.04 |
| (1) | Represents the weighted average price.
Schedule of Stock Options Outstanding and Exercisable | The following table summarizes information for stock options outstanding and for stock options exercisable at December 31, 2019. All shares and prices per share have been adjusted for a one share-for-ten shares reverse stock split that took effect on January 6, 2020:
Options Outstanding |  |  | Options Exercisable |
|  |  | Exercise Price |  |  | Remaining |  |  |  |  |  | Weighted Average |
Number of |  |  | Range |  |  | Weighted |  |  | Contractual |  |  | Number of |  |  | Exercise |
Shares |  |  | Low |  |  | High |  |  | Average |  |  | Term (years) |  |  | Shares |  |  | Price |
| 16,500 |  |  | $ | 7.20 |  |  | $ | 11.60 |  |  | $ | 10.00 |  |  |  | 6.8 |  |  |  | 16,500 |  |  | $ | 10.00 |
| 10,622 |  |  |  | 90.00 |  |  |  | 124.80 |  |  |  | 106.20 |  |  |  | 3.3 |  |  |  | 10,622 |  |  |  | 106.20 |
| 2,913 |  |  |  | 139.20 |  |  |  | 171.00 |  |  |  | 147.39 |  |  |  | 1.4 |  |  |  | 2,913 |  |  |  | 147.39 |
| 1,332 |  |  |  | 226.20 |  |  |  | 251.40 |  |  |  | 232.48 |  |  |  | 2.9 |  |  |  | 1,332 |  |  |  | 232.48 |
| 31,367 |  |  | $ | 7.20 |  |  | $ | 251.40 |  |  | $ | 64.78 |  |  |  | 4.9 |  |  |  | 31,367 |  |  | $ | 64.78 |

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