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Description of Business and Basis of Presentation - Schedule of Error Corrections (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Error Corrections and Prior Period Adjustments |  |
Prepaid expenses and other assets | $ 1,897 | $ 1,844
Accrued expenses | 1,265 | 1,273
Accumulated deficit | $ (38,090) | (33,615)
Immaterial Error Corrections |  |
Error Corrections and Prior Period Adjustments |  |
Prepaid expenses and other assets |  | 933
Accrued expenses |  | (96)
Accumulated deficit |  | $ 1,028

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