Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Payables and Accruals [Abstract]
Accrued professional fees	$ 881us-gaap_AccruedProfessionalFeesCurrent	$ 194us-gaap_AccruedProfessionalFeesCurrent
Accrued compensation	540us-gaap_AccruedSalariesCurrent	40us-gaap_AccruedSalariesCurrent
Accrued other	254us-gaap_OtherAccruedLiabilitiesCurrent	253us-gaap_OtherAccruedLiabilitiesCurrent
Accrued expenses	$ 1,675us-gaap_AccruedLiabilitiesCurrent	$ 487us-gaap_AccruedLiabilitiesCurrent

Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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