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Shareholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2015
Shareholders’ Equity [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | The following table summarizes the activity for stock options and warrants for the six months ended June 30, 2015:
|  | Stock Options |  | Warrants
|  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (In Thousands) |  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (In Thousands)
Outstanding at December 31, 2014 |  | 4,427,234 |  |  | $ | 9.19 |  |  | 6.93 |  | $ | 28.6 |  |  | 3,550,956 |  |  | $ | 14.12 |  |  | 2.12 |  | $ | 1.0 |
Changes during the period: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted |  | 2,903,188 |  |  | $ | 3.31 |  |  |  |  |  |  | — |  |  | $ | — |  |  |  |  |
Exercised |  | — |  |  | $ | — |  |  |  |  |  |  | — |  |  | $ | — |  |  |  |  |
Forfeited |  | (103,513 | ) |  | $ | 6.52 |  |  |  |  |  |  | — |  |  | $ | — |  |  |  |  |
Expired |  | (302,450 | ) |  | $ | 7.19 |  |  |  |  |  |  | (32,004 | ) |  | $ | 19.37 |  |  |  |  |
Outstanding at June 30, 2015 |  | 6,924,459 |  |  | $ | 6.86 |  |  | 7.77 |  | $ | — |  |  | 3,518,952 |  |  | $ | 14.07 |  |  | 1.65 |  | $ | — |
Vested at June 30, 2015 or expected to vest in the future |  | 6,616,000 |  |  | $ | 7.00 |  |  | 7.69 |  | $ | — |  |  | 3,518,952 |  |  | $ | 14.07 |  |  | 1.65 |  | $ | — |
Vested at June 30, 2015 |  | 4,726,752 |  |  | $ | 8.00 |  |  | 7.12 |  | $ | — |  |  | 3,516,452 |  |  | $ | 14.07 |  |  | 1.64 |  | $ | — |
Restricted Stock [Table Text Block] | During the six months ended June 30, 2015 and 2014, the Company issued restricted stock for services as follows (in thousands, except share data):
|  | Six Months Ended June 30,
|  | 2015 |  | 2014
Number of Restricted Stock Issued |  | 1,276,053 |  |  | 456,709 |
Value of Restricted Stock Issued |  | $ | 4,029.5 |  |  | $ | 3,389.7 |

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- Definition Shareholders’ Equity [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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