Preferred Stock	3 Months Ended
Mar. 31, 2021
Temporary Equity Disclosure [Abstract]
Preferred Stock	7. Preferred Stock As of March 31, 2021 and December 31, 2020, 5,000,000 shares of undesignated preferred stock were authorized. No shares of preferred stock were issued or outstanding as of March 31, 2021 and December 31, 2020. No dividends have been declared since inception.

The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

Name:	us-gaap_PreferredStockTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration