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Stock Options and Restricted Stock Units (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | The following table summarizes the activity in common shares subject to options and warrants:
|  | Year Ended December 31, |
|  | 2017 |  | 2016 |
|  |  |  | Weighted |  |  |  | Weighted |
|  |  |  | average exercise |  |  |  | average exercise |
|  | Shares |  | price |  | Shares |  | price |
Outstanding at beginning of year |  |  | 1,015,000 |  | $ | 0.67 |  |  | 5,025,000 |  | $ | 14.95 |
Granted |  |  | - |  |  | - |  |  | 1,000,000 |  |  | 0.65 |
Exercised |  |  | - |  |  | - |  |  | - |  |  | - |
Forfeited |  |  | - |  |  | - |  |  | 5,010,000 |  |  | 14.95 |
Outstanding at end of year |  |  | 1,015,000 |  | $ | 0.67 |  |  | 1,015,000 |  | $ | 0.67 |
Optons exercisable at end of year |  |  | 1,015,000 |  | $ | 0.67 |  |  | 1,015,000 |  | $ | 0.67 |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] | Information about stock options and warrants outstanding at December 31, 2017 is summarized as follows:
|  |  | Options and Warrants Outstanding and Exercisable |
|  |  |  |  |  | Weighted average |  |  |  |  |  |  |  |
|  |  |  |  |  | remaining |  |  | Weighted |  |  |  |
|  |  |  |  |  | contractual life |  |  | average |  | Aggregate Intrinsic |
Exercise price |  | Number outstanding |  | (Years) |  |  | exercise price |  | Value |
$ | 2.13 |  |  | 10,000 |  |  | NA | (1) |  | $ | 2.13 |  | $ | - |
$ | 2.25 |  |  | 5,000 |  |  | NA | (1) |  |  | 2.25 |  |  | - |
$ | 0.65 |  |  | 1,000,000 |  |  | 1 |  |  |  | 0.65 |  |  | 280,000 |
|  |  |  | 1,015,000 |  |  |  |  |  |  |  |  | $ | 280,000 |
| (1) | Options currently issued pursuant to the Company’s 2004 Employee Stock Option Plans have no expiration date.
Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block] | A summary of the status of our non-vested RSU grants issued under our 2006 Plan is presented below:
|  | Year Ended December 31, |
|  | 2017 |  | 2016 |
|  |  |  | Weighted |  |  |  | Weighted |
|  |  |  | average exercise |  |  |  | average exercise |
|  | Shares |  | price |  | Shares |  | price |
Nonvested at beginning of year |  |  | 152,000 |  | $ | 0.56 |  |  | 4,000 |  | $ | 2.12 |
Granted |  |  | - |  |  | - |  |  | 372,040 |  |  | 0.64 |
Vested |  |  | (18,750) |  |  | 0.56 |  |  | (124,040) |  |  | 0.83 |
Forfeited |  |  | (132,750) |  |  | 0.56 |  |  | (100,000) |  |  | 1.24 |
Outstanding at end of year |  |  | 500 |  | $ | 0.56 |  |  | 152,000 |  | $ | 0.56 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&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://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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