Loans Held For Investment Loans Held For Investment: Schedule of Allowance For Loan Losses and Recorded Investment in Gross Loans, by Portfolio Type (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 8,693	$ 11,041	$ 9,744	$ 14,935	$ 8,693		$ 11,041	$ 14,935
Provision for Loan and Lease Losses	(111)us-gaap_ProvisionForLoanAndLeaseLosses	(849)us-gaap_ProvisionForLoanAndLeaseLosses	(1,283)us-gaap_ProvisionForLoanAndLeaseLosses	(2,689)us-gaap_ProvisionForLoanAndLeaseLosses
Recoveries	291	120	729	427
Allowance for Loan and Lease Losses Write-offs, Net	(161)	(288)	(478)	(2,649)
Balance at end of period	8,712	10,024	8,712	10,024	8,693		11,041	14,935
Loans receivable, individually evaluated allowance	20	41	20	41		41
Loans receivable, collectively evaluated allowance	8,692	9,983	8,692	9,983		9,703
Financing Receivable, Individually Evaluated for Impairment	9,211	13,071	9,211	13,071
Financing Receivable, Collectively Evaluated for Impairment	818,602	764,913	818,602	764,913
Loans Held For Investment, Gross	827,813prov_LoansHeldForInvestmentGross	777,984prov_LoansHeldForInvestmentGross	827,813prov_LoansHeldForInvestmentGross	777,984prov_LoansHeldForInvestmentGross		780,208prov_LoansHeldForInvestmentGross
Allowance for loan losses as a percentage of gross loans held for investment	1.05%	1.29%	1.05%	1.29%
Mortgage loans, Single-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	4,540	7,307	5,476	9,062
Provision for Loan and Lease Losses	102	(1,719)	(790)	(2,961)
Recoveries	226	64	499	331
Allowance for Loan and Lease Losses Write-offs, Net	(88)	(185)	(405)	(965)
Balance at end of period	4,780	5,467	4,780	5,467
Loans receivable, individually evaluated allowance	0	0	0	0
Loans receivable, collectively evaluated allowance	4,780	5,467	4,780	5,467		5,476
Financing Receivable, Individually Evaluated for Impairment	5,651	6,821	5,651	6,821
Financing Receivable, Collectively Evaluated for Impairment	369,330	374,205	369,330	374,205
Loans Held For Investment, Gross	374,981	381,026	374,981	381,026		377,824
Allowance for loan losses as a percentage of gross loans held for investment	1.27%	1.43%	1.27%	1.43%
Mortgage loans, Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	2,998	2,554	3,142	4,689
Provision for Loan and Lease Losses	26	889	(282)	312
Recoveries	65	56	229	75
Allowance for Loan and Lease Losses Write-offs, Net	0	(94)	0	(1,671)
Balance at end of period	3,089	3,405	3,089	3,405
Loans receivable, individually evaluated allowance	0	0	0	0
Loans receivable, collectively evaluated allowance	3,089	3,405	3,089	3,405		3,142
Financing Receivable, Individually Evaluated for Impairment	1,982	2,565	1,982	2,565
Financing Receivable, Collectively Evaluated for Impairment	342,295	286,684	342,295	286,684
Loans Held For Investment, Gross	344,277	289,249	344,277	289,249		301,191
Allowance for loan losses as a percentage of gross loans held for investment	0.90%	1.18%	0.90%	1.18%
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	1,075	1,060	989	1,053
Provision for Loan and Lease Losses	(238)	(26)	(152)	(19)
Recoveries	0	0	0	0
Allowance for Loan and Lease Losses Write-offs, Net	(73)	0	(73)	0
Balance at end of period	764	1,034	764	1,034
Loans receivable, individually evaluated allowance	0	0	0	0
Loans receivable, collectively evaluated allowance	764	1,034	764	1,034		989
Financing Receivable, Individually Evaluated for Impairment	1,468	3,562	1,468	3,562
Financing Receivable, Collectively Evaluated for Impairment	100,150	100,980	100,150	100,980
Loans Held For Investment, Gross	101,618	104,542	101,618	104,542		96,781
Allowance for loan losses as a percentage of gross loans held for investment	0.75%	0.99%	0.75%	0.99%
Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	17	3	35	0
Provision for Loan and Lease Losses	10	17	(8)	0
Recoveries	0	0	0	20
Allowance for Loan and Lease Losses Write-offs, Net	0	0	0	0
Balance at end of period	27	20	27	20
Loans receivable, individually evaluated allowance	0	0	0	0
Loans receivable, collectively evaluated allowance	27	20	27	20		35
Financing Receivable, Individually Evaluated for Impairment	0	0	0	0
Financing Receivable, Collectively Evaluated for Impairment	6,039	1,792	6,039	1,792
Loans Held For Investment, Gross	6,039	1,792	6,039	1,792		2,869
Allowance for loan losses as a percentage of gross loans held for investment	0.45%	1.12%	0.45%	1.12%
Commercial Business Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	53	106	92	119
Provision for Loan and Lease Losses	(10)	(9)	(49)	(22)
Recoveries	0	0	0	0
Allowance for Loan and Lease Losses Write-offs, Net	0	(9)	0	(9)
Balance at end of period	43	88	43	88
Loans receivable, individually evaluated allowance	20	41	20	41		41
Loans receivable, collectively evaluated allowance	23	47	23	47		51
Financing Receivable, Individually Evaluated for Impairment	110	123	110	123
Financing Receivable, Collectively Evaluated for Impairment	542	928	542	928
Loans Held For Investment, Gross	652	1,051	652	1,051		1,237
Allowance for loan losses as a percentage of gross loans held for investment	6.60%	8.37%	6.60%	8.37%
Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	10	11	10	12
Provision for Loan and Lease Losses	(1)	(1)	(2)	1
Recoveries	0	0	1	1
Allowance for Loan and Lease Losses Write-offs, Net	0	0	0	(4)
Balance at end of period	9	10	9	10
Loans receivable, individually evaluated allowance	0	0	0	0
Loans receivable, collectively evaluated allowance	9	10	9	10		10
Financing Receivable, Individually Evaluated for Impairment	0	0	0	0
Financing Receivable, Collectively Evaluated for Impairment	246	324	246	324
Loans Held For Investment, Gross	$ 246	$ 324	$ 246	$ 324		$ 306
Allowance for loan losses as a percentage of gross loans held for investment	3.66%	3.09%	3.66%	3.09%

Loans Held For Investment Loans Held For Investment: Schedule of Allowance For Loan Losses and Recorded Investment in Gross Loans, by Portfolio Type (Details) (USD $)
In Thousands, unless otherwise specified