Note 17 - Shareholders' Equity (Details Textual) - $ / shares	Mar. 31, 2021	Feb. 26, 2021	Dec. 31, 2020
Shareholders Equity [Line Items]
Stock Authorized	560,000,000
Common Stock, Shares Authorized	500,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Preferred Stock, Shares Authorized	60,000,000
Preferred Stock, No Par Value	$ 0
Common Stock, Shares, Outstanding	78,500,000		77,200,000
Treasury Stock, Shares	800,000		700,000
Securities Purchase Agreement [Member]
Shareholders Equity [Line Items]
Common stock, shares, issued	1,000,000	1,000,000
Series A [Member]
Shareholders Equity [Line Items]
Preferred Stock Shares Outstanding			2,000,000
Preferred Stock Shares Issued			2,000,000
Series B Preferred Stock [Member]
Shareholders Equity [Line Items]
Preferred Stock Shares Outstanding	1,000,000
Preferred Stock Shares Issued	1,000,000
Series C Preferred Stock [Member]
Shareholders Equity [Line Items]
Preferred Stock Shares Outstanding	1,000,000
Preferred Stock Shares Issued	1,000,000