Consolidated Statements of Shareholders' Deficit (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Series A Preferred Stock Dividends [Member]
Dividends, per share (in dollars per share)	$ 0.52	$ 8.32	$ 10.50	$ 1.17		$ 25.01
Series C Preferred Stock Dividends [Member]
Dividends, per share (in dollars per share)				$ 75.00	$ 250.00	$ 250.00
Series A-1 Preferred Stock Dividends [Member]
Dividends, per share (in dollars per share)	0.52	8.32	9.75		25.01
Series D Preferred Stock Dividends [Member]
Dividends, per share (in dollars per share)	$ 85.70	87.31	$ 90.90
Series B Preferred Stock Dividends [Member]
Dividends, per share (in dollars per share)		$ 0.05			$ 0.11