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Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Feb. 28, 2009
Schedule of Accrued Liabilities [Line Items]
Legal and accounting fees	$ 173	$ 103
Accrued compensation	180	526
Severance agreement (Note 8)	1,000	1,000	1,000
Other	98	22
Total	$ 1,451	$ 1,651

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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- 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).

+ References+ Details