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Common Stock Options And Stock Purchase Plan (Tables) | 12 Months Ended
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Dec. 31, 2017
Employee Stock Option [Member] |
Schedule of Stock options activity |
|  |  | Options Outstanding |
|  |  | Number of Shares |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value (1) |
Balance at January 1, 2016 |  |  |  | 50,000 |  |  | $ | 4.21 |  |  |  | 7.6 |  |  |  |  |
Granted |  |  |  | 50,000 |  |  |  | 3.41 |  |  |  | 10.0 |  |  |  |  |
Exercised |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Canceled/forfeited/expired |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2016 |  |  |  | 100,000 |  |  |  | 3.81 |  |  |  | 8.7 |  |  |  |  |
Granted |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Canceled/forfeited/expired |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
B alance at December 31, 2017 |  |  |  | 100,000 |  |  | $ | 3.81 |  |  |  | 7.7 |  |  |  |  |
Vested and exercisable as of December 31, 2017 |  |  |  | 70,000 |  |  |  |  |  |  |  |  |  |  | $ | 32 |
| (1) | The aggregate intrinsic value is calculated as approximately the difference between the weighted average exercise price of the underlying awards and the Company’s estimated current fair market value at December 31, 2017.
Director Stock Option [Member] |
Schedule of Stock options activity |
|  |  | Options Outstanding |
|  |  | Number of Shares |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value (1) |
Balance at January 1, 2016 |  |  |  | 207,500 |  |  | $ | 4.62 |  |  |  | 7.4 |  |  |  |  |
Granted |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Canceled/forfeited/expired |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2016 |  |  |  | 207,500 |  |  |  | 4.62 |  |  |  | 6.4 |  |  |  |  |
Granted |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Canceled/forfeited/expired |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2017 |  |  |  | 207,500 |  |  | $ | 4.62 |  |  |  | 5.4 |  |  |  |  |
Vested and exercisable as of December 31, 2017 |  |  |  | 202,500 |  |  |  |  |  |  |  |  |  |  | $ | 0 |
| (1) | The aggregate intrinsic value is calculated as approximately the difference between the weighted average exercise price of the underlying awards and the Company’s estimated current fair market value at December 31, 2017.

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -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 (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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