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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2015
Accounting Policies [Abstract] |
Estimated Useful Lives of Assets | Property, plant and equipment, including those held under capital lease, are stated at cost. Depreciation is computed by use of the straight-line method over the estimated useful lives of the assets, or the lease term if shorter, as follows:
Building and improvements |  |  | 3 - 20 years |
Machinery and equipment |  |  | 3 - 10 years |
Furniture and fixtures |  |  | 3 - 10 years |
Basic and Dilutive Net Loss per Share Computations | The following are the basic and dilutive net loss per share computations for the last three fiscal years:
|  | 2015 |  |  | 2014 |  |  | 2013 |
Net loss from continuing operations |  | $ | (36,415,026 | ) |  | $ | (32,260,663 | ) |  | $ | (25,986,692 | )
Net loss from discontinued operations |  |  | — |  |  |  | (480,611 | ) |  |  | (452,467 | )
Net loss |  | $ | (36,415,026 | ) |  | $ | (32,741,274 | ) |  | $ | (26,439,159 | )
Weighted average shares outstanding used to compute basic and diluted net loss per share |  |  | 95,807,377 |  |  |  | 61,612,957 |  |  |  | 43,422,001 |
Basic and diluted net loss per share from continuing operations |  | $ | (0.38 | ) |  | $ | (0.52 | ) |  | $ | (0.60 | )
Basic and diluted net loss per share from discontinued operations |  | $ | — |  |  | $ | (0.01 | ) |  | $ | (0.01 | )
Basic and diluted net loss per share |  | $ | (0.38 | ) |  | $ | (0.53 | ) |  | $ | (0.61 | )
Schedule of Anti-dilutive Securities | Outstanding options, warrants and restricted stock units were excluded from the computation of diluted net loss per share because the effect would have been anti-dilutive for all periods presented below:
|  | 2015 |  |  | 2014 |  |  | 2013 |
Outstanding options |  |  | 2,079,129 |  |  |  | 302,729 |  |  |  | 428,258 |
Restricted stock units |  |  | 8,442,519 |  |  |  | 3,374,940 |  |  |  | 3,326,282 |
Outstanding warrants |  |  | 44,277,849 |  |  |  | 23,478,181 |  |  |  | 16,267,659 |
Total |  |  | 54,799,497 |  |  |  | 27,155,850 |  |  |  | 20,022,199 |
Summary of Components of Accumulated OCI | The components of our accumulated OCI, as of December 31 of each year shown, are as follows:
|  | 2015 |  |  | 2014 |
Unrealized gain on foreign currency translation |  | $ | 47,359 |  |  | $ | 65,390 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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