Loans and Allowance for Credit Losses - Schedule of balance in the ACL and the recorded investment in loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020
Beginning balance of allowance for loan losses	$ 35,471	$ 20,814	$ 25,139
Impact of CECL adoption			9,333
Provision charged to expense		2,850	1,385	$ 4,134
Losses charged off	(258)	(190)	(674)	(607)
Recoveries	14	34	44	78
Ending balance of allowance for loan losses	35,227	23,508	35,227	23,508	$ 25,139
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment		23,508		23,508	25,139
Ending Balance: loans acquired with deteriorated credit quality					0
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment					2,149,664
Ending Balance: loans acquired with deteriorated credit quality					21,799
Prior to adoption of CECL
Beginning balance of allowance for loan losses			25,139	19,903	19,903
Ending balance of allowance for loan losses					25,139
Consumer Loan
Beginning balance of allowance for loan losses	1,362	1,050	1,182
Impact of CECL adoption			1,065
Provision charged to expense	(107)	64	(929)	156
Losses charged off	(57)	(19)	(130)	(117)
Recoveries	6	7	16	17
Ending balance of allowance for loan losses	1,204	1,102	1,204	1,102	1,182
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment		1,102		1,102	1,182
Ending Balance: loans acquired with deteriorated credit quality					0
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment					80,767
Ending Balance: loans acquired with deteriorated credit quality					0
Consumer Loan \| Prior to adoption of CECL
Beginning balance of allowance for loan losses			1,182	1,046	1,046
Ending balance of allowance for loan losses					1,182
Commercial Loan
Beginning balance of allowance for loan losses	6,085	4,568	4,940
Impact of CECL adoption			1,012
Provision charged to expense	(1,018)	70	(670)	397
Losses charged off	(42)	(26)	(276)	(173)
Recoveries	7	27	26	28
Ending balance of allowance for loan losses	5,032	4,639	5,032	4,639	4,940
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment		4,639		4,639	4,940
Ending Balance: loans acquired with deteriorated credit quality					0
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment					463,902
Ending Balance: loans acquired with deteriorated credit quality					4,546
Commercial Loan \| Prior to adoption of CECL
Beginning balance of allowance for loan losses			4,940	4,387	4,387
Ending balance of allowance for loan losses					4,940
Construction Real Estate
Beginning balance of allowance for loan losses	2,387	1,657	2,010
Impact of CECL adoption			(121)
Provision charged to expense	(369)	(46)	129	246
Ending balance of allowance for loan losses	2,018	1,611	2,018	1,611	2,010
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment		1,611		1,611	2,010
Ending Balance: loans acquired with deteriorated credit quality					0
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment					106,194
Ending Balance: loans acquired with deteriorated credit quality					1,278
Construction Real Estate \| Prior to adoption of CECL
Beginning balance of allowance for loan losses			2,010	1,365	1,365
Ending balance of allowance for loan losses					2,010
Residential real estate loans
Beginning balance of allowance for loan losses	10,398	3,712	4,875
Impact of CECL adoption			3,521
Provision charged to expense	(576)	1,035	1,536	1,195
Losses charged off	(68)	(133)	(178)	(305)
Recoveries	1		1	18
Ending balance of allowance for loan losses	9,755	4,614	9,755	4,614	4,875
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment		4,614		4,614	4,875
Ending Balance: loans acquired with deteriorated credit quality					0
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment					626,085
Ending Balance: loans acquired with deteriorated credit quality					1,272
Residential real estate loans \| Prior to adoption of CECL
Beginning balance of allowance for loan losses			4,875	3,706	3,706
Ending balance of allowance for loan losses					4,875
Commercial Real Estate
Beginning balance of allowance for loan losses	15,239	9,827	12,132
Impact of CECL adoption			3,856
Provision charged to expense	2,070	1,727	1,319	2,140
Losses charged off	(91)	(12)	(90)	(12)
Recoveries			1	15
Ending balance of allowance for loan losses	$ 17,218	11,542	17,218	11,542	12,132
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment		$ 11,542		11,542	12,132
Ending Balance: loans acquired with deteriorated credit quality					0
Ending Balance: individually evaluated for impairment					0
Ending Balance: collectively evaluated for impairment					872,716
Ending Balance: loans acquired with deteriorated credit quality					14,703
Commercial Real Estate \| Prior to adoption of CECL
Beginning balance of allowance for loan losses			$ 12,132	$ 9,399	9,399
Ending balance of allowance for loan losses					$ 12,132

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Represents the monetary amount of Financing Receivables Acquired with Deteriorated Credit Quality, during the indicated time period.

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Represents the monetary amount of Financing Receivables Allowance for Credit Losses Acquired with Deteriorated Credit Quality, during the indicated time period.

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Represents the monetary amount of Impact of CECL adoption, during the indicated time period.

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Amount of increase in allowance for credit loss on accounts receivable, from recovery.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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