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Revenue Recognition - Additional Information (Detail) (USD $) | 3 Months Ended | 9 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended
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Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 Pfizer Incorporation Nonsoftware License Arrangement | Sep. 30, 2013 Pfizer Incorporation Nonsoftware License Arrangement | Sep. 30, 2013 Pfizer Incorporation Nonsoftware License Arrangement | Dec. 31, 2012 Pfizer Incorporation Nonsoftware License Arrangement | Jan. 31, 2013 Pfizer Incorporation Nonsoftware License Arrangement Up-front Payment Arrangement | Sep. 30, 2013 Orencia Royalties from Bristol | Sep. 30, 2012 Orencia Royalties from Bristol | Sep. 30, 2013 Orencia Royalties from Bristol | Sep. 30, 2012 Orencia Royalties from Bristol
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty revenue | $ 6,637,838 | $ 3,981,059 | $ 15,654,919 | $ 11,327,500 |  |  |  |  |  | $ 4,825,000 | $ 3,963,000 | $ 12,956,000 | $ 10,623,000
Percentage of royalty revenue, remittance to the University of Michigan |  |  | 15.00% |  |  |  |  |  |  |  |  |  |
Cost of royalty and other revenue | 723,777 | 594,406 | 1,943,370 | 1,593,427 |  |  |  |  |  | 724,000 | 594,000 | 1,943,000 | 1,593,000
Payment received under license agreement |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |
Milestone Payment |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |
Total future milestone receivable |  |  |  |  | 64,000,000 | 64,000,000 | 64,000,000 |  |  |  |  |  |
License agreement, revenue recognized |  |  |  |  |  | 1,093,000 | 1,217,000 | 4,876,000 |  |  |  |  |
Revenue from sponsored research and development projects | $ 719,000 | $ 18,000 | $ 1,481,000 | $ 704,000 |  |  |  |  |  |  |  |  |

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- Definition Royalty Payment Rate + References No definition available. + Details
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- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- Definition Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- Definition Royalty expense incurred and are directly related to goods produced and sold and services rendered during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The amount of compensation earned (contract income) under a research and development arrangement accounted for as a contract to perform research and development for others. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6420387&loc=d3e23221-108380 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420387&loc=d3e23199-108380 + Details
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- Definition The amount of consideration recognized during the period for the milestone or milestones. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 28 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=19771982&loc=SL6892177-166501 + Details
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- Definition Revenue earned during the period from the leasing or otherwise lending to a third party the entity's rights or title to certain property. Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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