Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Subsequent Events - Additional Information (Details) - USD ($) $ in Thousands	Aug. 06, 2020	Jun. 30, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Accounts payable		$ 2,240	$ 3,151
Subsequent Event \| Financial Advisory Consulting Services
Subsequent Event [Line Items]
Accounts payable	$ 2,500
Subsequent Event \| Financial Advisory Consulting Services \| Payable Upon Earlier of Certain Clinical Milestones or June 30, 2022
Subsequent Event [Line Items]
Accounts payable	$ 2,500