Equity - Warrants (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended	12 Months Ended
	Nov. 06, 2021	Apr. 20, 2020	Jul. 17, 2019	May 31, 2016	Dec. 31, 2022	Dec. 31, 2021
Number of Underlying Shares
Outstanding, beginning balance (in shares)					12,803,846	17,403,846
Outstanding, end balance (in shares)					9,803,846	12,803,846
Weighted Average Exercise Price Per Share
Outstanding, beginning balance (in dollars per share)					$ 0.34	$ 0.38
Outstanding, end balance (in dollars per share)					$ 0.34	$ 0.34
May 2016 Warrants
Number of Underlying Shares
Expired during period (in shares)						(1,500,000)
Exchanged during period (in shares)					4,500,000
Weighted Average Exercise Price Per Share
Expired during period (in dollar per share)						$ 0.75
Series B Warrants
Number of Underlying Shares
Outstanding, beginning balance (in shares)					3,000,000
Exercised during period (in shares)					3,000,000	1,500,000
Expired during period (in shares)	1,500,000
Outstanding, end balance (in shares)						3,000,000
Exchanged during period (in shares)					4,500,000
Weighted Average Exercise Price Per Share
Exchanged during the period (in dollar per share)					$ 0.35
Warrants exercise period					6 months
Proceeds from warrant exercised					$ 1.1	$ 0.5
July 2019 Series A warrants
Number of Underlying Shares
Exercised during period (in shares)						(200,000)
Weighted Average Exercise Price Per Share
Exercised during period (in dollar per share)						$ 0.35
July 2019 Series B warrants
Number of Underlying Shares
Exercised during period (in shares)					(3,000,000)	(1,500,000)
Weighted Average Exercise Price Per Share
Exercised during period (in dollar per share)					$ 0.35	$ 0.35
April 2020 Series A warrants
Number of Underlying Shares
Exercised during period (in shares)						(1,400,000)
Weighted Average Exercise Price Per Share
Exercised during period (in dollar per share)						$ 0.30
Private Placement [Member] | Series A Warrants
Number of Underlying Shares
Outstanding, beginning balance (in shares)
Exercised during period (in shares)						1,400,000
Outstanding, end balance (in shares)					1,100,000
Weighted Average Exercise Price Per Share
Gross proceeds from common stock sale						$ 0.4
Private Placement [Member] | Series B Warrants
Number of Underlying Shares
Outstanding, beginning balance (in shares)					250,000
Outstanding, end balance (in shares)						250,000
Registered Offering [Member]
Weighted Average Exercise Price Per Share
Gross proceeds from common stock sale				$ 4.0
Stock Issued During period Shares New Issues (in shares)				8,000,000.0
Sale price (in dollars per shares)				$ 0.50
Registered Offering [Member] | May 2016 Warrants
Number of Underlying Shares
Outstanding, end balance (in shares)				6,000,000
Weighted Average Exercise Price Per Share
Number of shares of common stock per capital unit (in shares)				0.75
Number of common shares which can be purchased with each warrant					1
Warrants exercise period				5 years
Registered Offering [Member] | Series A Warrants
Number of Underlying Shares
Outstanding, beginning balance (in shares)					8,453,846
Exercised during period (in shares)						200,000
Outstanding, end balance (in shares)					8,453,846	8,453,846
Weighted Average Exercise Price Per Share
Common shares issuable upon exercise						100,000
Warrants exercise period			6 months
Common Stock [Member] | Private Placement [Member]
Weighted Average Exercise Price Per Share
Common shares issuable upon exercise		11,250,000
Stock Issued During period Shares New Issues (in shares)		15,000,000
Common Stock [Member] | Private Placement [Member] | Series A Warrants
Weighted Average Exercise Price Per Share
Common shares issuable upon exercise		7,500,000
Common Stock [Member] | Private Placement [Member] | Series B Warrants
Weighted Average Exercise Price Per Share
Common shares issuable upon exercise		3,750,000
Common Stock [Member] | Registered Offering [Member]
Weighted Average Exercise Price Per Share
Stock Issued During period Shares New Issues (in shares)			8,653,846