Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restricted stock unit distributions, shares (in shares)	1,702,000		1,702,000
Common stock dividends declared, per common share (in dollars per share)	$ 0.0025	$ 0.0025	$ 0.0025	$ 0.0025
Preferred stock dividends declared, per share (in dollars per share)	$ 0.875	$ 0.875	$ 0.875	$ 0.875
Common stock issued for 401(k) match, shares (in shares)	606,000	362,000	957,000	745,000
Common stock issued for employee incentive compensation, shares (in shares)	2,800,000	3,597,000	2,800,000	3,597,380
Common stock issued to pension plans, shares (in shares)	167,000	2,384,000	167,000	2,384,000
Treasury shares issued to charitable foundation, shares (in shares)	650,000		650,000
Stock issued to directors, shares (in shares)		253,000		253,000