Debt - Schedule of Future Payments of Principal on Loan (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Less current portion, gross	$ (5,709,985)us-gaap_LongTermDebtCurrent	$ (2,610,174)us-gaap_LongTermDebtCurrent
Total long-term debt obligations, gross	22,589,058us-gaap_LongTermDebtNoncurrent	27,945,186us-gaap_LongTermDebtNoncurrent
Curis Royalty [Member]
Debt Instrument [Line Items]
Total long-term debt obligations, gross	22,589,058	27,945,186
Curis Royalty [Member] \| BioPharma-II [Member]
Debt Instrument [Line Items]
2015, Principal	5,748,059
2016, Principal	10,011,236
2017, Principal	12,653,551
Thereafter	0
Total payments	28,412,846
Less current portion, gross	(5,748,059)
Total long-term debt obligations, gross	22,664,787
Total payments	$ 28,412,846

Long-term debt maturities repayments of principal in year four and thereafter.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

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-Topic 210

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Publisher FASB

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-Topic 210

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-Paragraph 1

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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+ References

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