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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Summary of Significant Accounting Policies [Abstract] |
Estimated useful lives of the assets | 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:
|  | 2012 |  |  | 2011 |  |  | 2010 |
Net loss |  | $ | (28,491,153 | ) |  | $ | (21,328,536 | ) |  | $ | (25,243,551 | )
Weighted average shares outstanding used to compute basic and diluted net loss per share |  |  | 28,824,417 |  |  |  | 14,187,885 |  |  |  | 12,330,299 |
Basic and diluted net loss per share |  | $ | (0.99 | ) |  | $ | (1.50 | ) |  | $ | (2.05 | )
Outstanding options, warrants and restricted stock units | 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:
|  | 2012 |  |  | 2011 |  |  | 2010 |
Outstanding options |  |  | 447,359 |  |  |  | 875,498 |  |  |  | 1,098,242 |
Restricted stock units |  |  | 1,534,200 |  |  |  | 357,541 |  |  |  | 469,505 |
Outstanding warrants |  |  | 9,935,912 |  |  |  | 17,434,483 |  |  |  | 1,434,483 |
Total |  |  | 11,917,471 |  |  |  | 18,667,522 |  |  |  | 3,002,230 |
Summary of components of accumulated OCI | The components of our accumulated OCI, as of December 31 of each year shown, are as follows:
|  | 2012 |  |  | 2011 |
Net unrealized gain (loss) on marketable securities |  | $ | (1,356 | ) |  | $ | (2,694 | )
Unrealized gain on foreign currency translation |  |  | 194,533 |  |  |  | 43,407 |
Accumulated other comprehensive income |  | $ | 193,177 |  |  | $ | 40,713 |

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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=20435746&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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