Fair Value Measurements - Summary of Assets Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financial Assets:
Total financial assets	$ 15,199	$ 22,955
Level 1
Financial Assets:
Total financial assets	15,199	22,955
Cash and Money Markets
Financial Assets:
Total financial assets	14,839	22,595
Cash and Money Markets | Level 1
Financial Assets:
Total financial assets	14,839	22,595
Restricted Cash Money Market
Financial Assets:
Total financial assets	360	360
Restricted Cash Money Market | Level 1
Financial Assets:
Total financial assets	$ 360	$ 360