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Subordinated Debt (Details Textual) - Subordinated Debt - USD ($)	1 Months Ended
	Aug. 31, 2021	Oct. 31, 2020	Jun. 30, 2019	Dec. 30, 2021	Jun. 30, 2020
2031 Notes
Debt Instrument [Line Items]
Subordinated debenture, principal amount					$ 37,000,000
Fixed annual interest rate (as a percent)					6.00%
2030 Notes
Debt Instrument [Line Items]
Subordinated debenture, principal amount		$ 10,000,000
Fixed annual interest rate (as a percent)		6.00%
2031 Notes
Debt Instrument [Line Items]
Subordinated debenture, principal amount	$ 60,000,000
Fixed annual interest rate (as a percent)	3.75%
Unregistered 2031 Notes
Debt Instrument [Line Items]
Debt Instrument, Principal Amount Exchanged				$ 59,300,000
Debt Instrument, Principal Amount Remaining				$ 700,000
LIBOR | 2031 Notes
Debt Instrument [Line Items]
Basis spread on variable rate			4.11%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | 2030 Notes
Debt Instrument [Line Items]
Basis spread on variable rate		5.795%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | 2031 Notes
Debt Instrument [Line Items]
Basis spread on variable rate	3.11%

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