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Quarterly Results (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Financial Information [Table Text Block] | Quarterly results for the years ended December 31, 2017 and 2016 are as follows:
|  | First |  | Second |  | Third |  | Fourth |
For the year ended December 31, 2017 |  | Quarter |  | Quarter |  | Quarter |  | Quarter |
Revenue |  | $ | 360,000 |  | $ | - |  | $ | - |  | $ | 180,000 |
Gross Profit (Loss) |  | $ | 109,000 |  | $ | - |  | $ | (15,000) |  | $ | 66,000 |
Operating Expense |  | $ | 2,502,000 |  | $ | 2,251,000 |  | $ | 2,460,000 |  | $ | 2,659,000 |
Net Loss |  | $ | (2,379,000) |  | $ | (2,236,000) |  | $ | (2,472,000) |  | $ | (2,593,000) |
Net Loss per share - basic and fully diluted |  | $ | (0.16) |  | $ | (0.17) |  | $ | (0.16) |  | $ | (0.17) |
For the year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  | $ | - |  | $ | - |  | $ | 260,000 |  | $ | 361,000 |
Gross Profit (Loss) |  | $ | - |  | $ | - |  | $ | 213,000 |  | $ | (77,000) |
Operating Expense |  | $ | 2,601,000 |  | $ | 2,442,000 |  | $ | 4,066,000 |  | $ | 2,232,000 |
Net Loss |  | $ | (2,589,000) |  | $ | (2,431,000) |  | $ | (3,846,000) |  | $ | (2,306,000) |
Net Loss per share - basic and fully diluted |  | $ | (0.20) |  | $ | (0.19) |  | $ | (0.30) |  | $ | (0.17) |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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