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Stock Options (Tables) | 12 Months Ended
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Dec. 31, 2012
Stock Options [Abstract] |
Summary of stock option activity |
|  | Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term(Years) |
Outstanding at December 31, 2010: |  |  | 447,659 |  |  | $ | 0.27 |  |  |  | 8.62 |
Granted |  |  | 1,141,952 |  |  |  | 2.61 |  |  |  |  |
LecTec stock option from Merger |  |  | 464,000 |  |  |  | 3.48 |  |  |  |  |
Forfeited |  |  | (9,223 | ) |  |  | (0.06 | ) |  |  |  |
Exercised |  |  | (98,700 | ) |  |  | (0.27 | ) |  |  |  |
Outstanding at December 31, 2011: |  |  | 1,945,688 |  |  |  | 2.41 |  |  |  | 7.35 |
Granted |  |  | 267,576 |  |  |  | 2.99 |  |  |  |  |
Forfeited |  |  | (354,932 | ) |  |  | (2.48 | ) |  |  |  |
Exercised |  |  | (58,341 | ) |  |  | (0.27 | ) |  |  |  |
Outstanding at December 31, 2012 |  |  | 1,799,991 |  |  |  | 2.54 |  |  |  | 7.66 |
Exercisable at December 31, 2012 |  |  | 941,876 |  |  |  | 2.71 |  |  |  | 7.11 |
Non-vested share-based payment activity with employees |
|  | Number of Options |  |  | Weighted Average Grant Date Fair Value |
Nonvested options — December 31, 2010: |  |  | 325,575 |  |  |  | 0.27 |
Granted |  |  | 1,141,952 |  |  |  | 0.42 |
Vested |  |  | (195,099 | ) |  |  | (0.87 | )
Forfeited |  |  | (9,223 | ) |  |  | (0.004 | )
Nonvested options — December 31, 2011: |  |  | 1,263,205 |  |  |  | 1.41 |
Granted |  |  | 267,576 |  |  |  | 2.99 |
Vested |  |  | (317,734 | ) |  |  | (1.92 | )
Forfeited |  |  | (354,932 | ) |  |  | (2.48 | )
Nonvested options — December 31, 2012 |  |  | 858,115 |  |  |  | 2.36 |

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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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