Loss per Share, Anti Dilutive Equity Securities (Details) - shares shares in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Anti-dilutive Securities [Abstract]
Anti-dilutive equity securities (in shares)	309,366	234,459
Common Stock Options [Member]
Anti-dilutive Securities [Abstract]
Anti-dilutive equity securities (in shares)	31,759	31,864
Common Stock Purchase Warrants [Member]
Anti-dilutive Securities [Abstract]
Anti-dilutive equity securities (in shares)	183,435	142,266
Convertible Notes Payable [Member]
Anti-dilutive Securities [Abstract]
Anti-dilutive equity securities (in shares)	94,172	60,329

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration