Fair Value of Financial Instruments: Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale, at fair value	$ 188,050	$ 231,639
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	19,510	22,898
Loans held for sale, at fair value	188,050	231,639
Interest-only strips	98	130
Derivative assets	9,583	4,193
Total assets	217,241	258,860
Derivative liabilities	3,221	1,492
Total liabilities	3,221	1,492
Recurring | Commitments to extend credit on loans to be held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,338	3,998
Derivative liabilities	2,370	17
Recurring | Mandatory loan sale commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	405	38
Derivative liabilities	322	201
Recurring | TBA MBS trades
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	7,251	121
Derivative liabilities	529	1,274
Recurring | Option contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	589	36
Recurring | U.S. government agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	10,816	12,314
Recurring | U.S. government sponsored enterprise MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	7,675	9,342
Recurring | Private issue CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	1,019	1,242
Recurring | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Loans held for sale, at fair value	0	0
Interest-only strips	0	0
Derivative assets	0	0
Total assets	0	0
Derivative liabilities	0	0
Total liabilities	0	0
Recurring | Fair Value, Inputs, Level 1 | Commitments to extend credit on loans to be held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Fair Value, Inputs, Level 1 | Mandatory loan sale commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Fair Value, Inputs, Level 1 | TBA MBS trades
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Fair Value, Inputs, Level 1 | Option contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Recurring | Fair Value, Inputs, Level 1 | U.S. government agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Recurring | Fair Value, Inputs, Level 1 | U.S. government sponsored enterprise MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Recurring | Fair Value, Inputs, Level 1 | Private issue CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Recurring | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	18,491	21,656
Loans held for sale, at fair value	188,050	231,639
Interest-only strips	0	0
Derivative assets	7,251	121
Total assets	213,792	253,416
Derivative liabilities	529	1,274
Total liabilities	529	1,274
Recurring | Fair Value, Inputs, Level 2 | Commitments to extend credit on loans to be held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Fair Value, Inputs, Level 2 | Mandatory loan sale commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Fair Value, Inputs, Level 2 | TBA MBS trades
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	7,251	121
Derivative liabilities	529	1,274
Recurring | Fair Value, Inputs, Level 2 | Option contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Recurring | Fair Value, Inputs, Level 2 | U.S. government agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	10,816	12,314
Recurring | Fair Value, Inputs, Level 2 | U.S. government sponsored enterprise MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	7,675	9,342
Recurring | Fair Value, Inputs, Level 2 | Private issue CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Recurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	1,019	1,242
Loans held for sale, at fair value	0	0
Interest-only strips	98	130
Derivative assets	2,332	4,072
Total assets	3,449	5,444
Derivative liabilities	2,692	218
Total liabilities	2,692	218
Recurring | Fair Value, Inputs, Level 3 | Commitments to extend credit on loans to be held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,338	3,998
Derivative liabilities	2,370	17
Recurring | Fair Value, Inputs, Level 3 | Mandatory loan sale commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	405	38
Derivative liabilities	322	201
Recurring | Fair Value, Inputs, Level 3 | TBA MBS trades
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Fair Value, Inputs, Level 3 | Option contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	589	36
Recurring | Fair Value, Inputs, Level 3 | U.S. government agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Recurring | Fair Value, Inputs, Level 3 | U.S. government sponsored enterprise MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	0	0
Recurring | Fair Value, Inputs, Level 3 | Private issue CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities	$ 1,019	$ 1,242