Acquisitions - Purchase price for the central federal bancshares financial acquisition (Details) - USD ($)		12 Months Ended
	May 22, 2020	Jun. 30, 2020
Recognized amounts of identifiable assets acquired and liabilities assumed
Bargain purchase gain		$ (123,000)
Central Federal Bancshares
Fair Value of Consideration Transferred
Cash	$ 21,942,000
Recognized amounts of identifiable assets acquired and liabilities assumed
Cash and cash equivalents	12,862,000
Investment securities	4,355,000
Loans	51,449,000
Premises and equipment	723,000
Identifiable intangible assets	540,000
Miscellaneous other assets	639,000
Deposits	(46,720,000)
Miscellaneous other liabilities	(1,783,000)
Total identifiable net liabilities	22,065,000
Bargain purchase gain	$ (123,000)