Accrued Expenses

6 Months Ended

Jun. 30, 2018

Accrued Liabilities [Abstract]

Accrued Expenses

6. Accrued Expenses

As of June 30, 2018, Current Liabilities included accrued expenses of $0.9 million, comprised primarily of accrued clinical and preclinical expenses of $0.5 million, employee vacation and bonus expenses of $0.2 million, an annual license maintenance fee of $0.1 million and other accrued expenses of $0.1 million. As of December 31, 2017, Current Liabilities included accrued expense of $0.7 million, comprised primarily of accrued clinical and preclinical expenses of $0.4 million, employee vacation and bonus expenses of $0.1 million, an annual license maintenance fee of $0.1 million and other accrued expenses of $0.1 million.