Stockholders' Equity - Warrants (Details) - $ / shares	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Stockholders' Equity Note [Abstract]
Number of Underlying Shares (in shares)	310,860	736,545
Exercise price of common stock (in dollars per share)	$ 3.59

Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant