Consolidated Statements of Changes in Shareholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Treasury stock reissued, shares (in shares)	19,340	17,200
Treasury stock reissued, cost per share (in dollars per share)	$ 10.75	$ 10.83
ESOP shares allocated or committed to be released for allocation, shares (in shares)	16,616	16,616
Treasury stock purchased, shares (in shares)	70,000
Treasury stock, average cost per share (in dollars per share)	$ 17.29