Summary of Significant Accounting Policies - Summary of Restatement Adjustments on Previously Reported Condensed Consolidated Financial Statements (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jan. 01, 2019
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Common Stock	$ 25	$ 24	$ 5	$ 5	$ 5	$ 5
Additional paid in capital	$ 178,258	$ 149,840	69,391	68,921	67,877	67,495
As Previously Reported
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Common Stock			57,459	57,108	57,108	57,101
Additional paid in capital			11,937	11,818	10,774	10,399
Adjustment
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Common Stock			(57,454)	(57,103)	(57,103)	(57,096)
Additional paid in capital			$ 57,454	$ 57,103	$ 57,103	$ 57,096