Equity Transactions (Details) - USD ($)			1 Months Ended			12 Months Ended
	Jun. 06, 2020	Apr. 05, 2019	Aug. 31, 2020	Jun. 30, 2020	May 31, 2020	Dec. 31, 2020	Apr. 22, 2020	May 16, 2019
Subsidiary, Sale of Stock [Line Items]
Common stock, shares agreed to be sold, stock subscription agreement (in shares)								100,000
ATMs
Subsidiary, Sale of Stock [Line Items]
Number of shares issued and sold			49,000,000.0	24,800,000	34,300,000	108,100,000
Proceeds from sale of stock						$ 36,300,000
Commissions, fees and expenses						1,500,000
Number of shares outstanding, remaining capacity						$ 8,300,000
Subscription Agreements
Subsidiary, Sale of Stock [Line Items]
Number of shares issued and sold	1,300,000	100,000
Proceeds from sale of stock		$ 1,000,000.0
Accredited investors agreement to cancel outstanding obligation	$ 300,000
Accredited investors agreement to cancel additional portion owed representing a discount	$ 200,000
Number of shares sold in subscription agreement							1,000
Aggregate offering price							$ 395
Subscription Agreements | Board members
Subsidiary, Sale of Stock [Line Items]
Common stock, shares agreed to be sold, stock subscription agreement (in shares)		40,286
Common stock, value, subscriptions		$ 500,000