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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2018
Shareholders' Equity |
Schedule of Weighted Average Assumptions | The following weighted-average assumptions were used for grants issued during 2018 and 2017 under the ASC No. 718 requirements:
|  | 2018 |  |  | 2017 |
Weighted average risk-free rate |  |  | 2.87 | % |  |  | 1.97 | %
Weighted average volatility |  |  | 113.20 | % |  |  | 113.57 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %
Expected term |  |  | 7.06 years |  |  |  | 7.19 years |
Summary of Stock Option Activity | The following table summarizes stock option activities for the years ended December 31, 2018 and 2017:
|  | Outstanding Options |  |  | Weighted Average Exercise Price per Share |  |  | Weighted Average Remaining Contractual Life (in years) |  |  | Aggregate Intrinsic Value |
Outstanding January 1, 2017 |  |  | 165,000 |  |  | $ | 17.78 |  |  |  | 8.67 |  |  | $ | 36,000 |
Granted |  |  | 8,000 |  |  |  | 6.66 |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Cancelled |  |  | (8,000 | ) |  |  | 16.76 |  |  |  | - |  |  |  | - |
Forfeited |  |  | (9,000 | ) |  |  | 9.87 |  |  |  | - |  |  |  | - |
Expired |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Outstanding December 31, 2017 |  |  | 156,000 |  |  |  | 17.74 |  |  |  | 7.12 |  |  |  | - |
Granted |  |  | 2,000 |  |  |  | 4.44 |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Cancelled |  |  | (6,000 | ) |  |  | 10.42 |  |  |  | - |  |  |  | - |
Forfeited |  |  | (4,000 | ) |  |  | 6.38 |  |  |  | - |  |  |  | - |
Expired |  |  | (1,000 | ) |  |  | 16.00 |  |  |  | - |  |  |  | - |
Outstanding December 31, 2018 |  |  | 147,000 |  |  | $ | 18.20 |  |  |  | 6.08 |  |  | $ | - |
Options vested and exercisable at December 31, 2018 |  |  | 137,000 |  |  | $ | 18.81 |  |  |  | 5.99 |  |  | $ | - |
Summary of Restricted Stock Unit Activity | The following table summarizes restricted stock unit activity for the year ended December 31, 2018:
|  | Outstanding Restricted Stock Units |  |  | Weighted Average Fair Value per Share |
January 1, 2018 |  |  | - |  |  | $ | - |
Granted |  |  | 74,000 |  |  |  | 5.13 |
Released |  |  | (13,000 | ) |  |  | 6.04 |
Cancelled |  |  | - |  |  |  | - |
December 31, 2018 |  |  | 61,000 |  |  | $ | 4.94 |
Balance exercisable at December 31, 2018 |  |  | 51,000 |  |  |  |  |
Summary of Warrant Activities | The following summarizes warrant activities for the years ended December 31, 2018 and 2017:
|  | Outstanding Warrants |  |  | Weighted Average Exercise Price per Share |  |  | Weighted Average Remaining Contractual Life (in years) |
Outstanding January 1, 2017 |  |  | 132,000 |  |  | $ | 33.64 |  |  |  | 2.18 |
Granted |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (60,000 | ) |  |  | - |  |  |  | - |
Outstanding December 31, 2017 |  |  | 72,000 |  |  | $ | 20.00 |  |  |  | 0.87 |
Granted |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (72,000 | ) |  |  | - |  |  |  | - |
Outstanding December 31, 2018 |  |  | - |  |  | $ | - |  |  |  | - |
Balance exercisable at December 31, 2018 |  |  | - |  |  | $ | - |  |  |  | - |

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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=109197908&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=109197908&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=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + 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=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: 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 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68057994&loc=d3e25284-112666 + Details
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