LOANS & ALLOWANCE FOR LOAN LOSS - ALLOWANCE FOR CREDIT LOSS DISCLOSURES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	$ 2,160,972	$ 1,720,097
Recreational Vehicles and Autos | Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	19,678	22,247
Single Family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	1,201,771	851,881
Multi-family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	759,096	681,628
Commercial | Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	26,484	34,749
LTV less than or equal to 60% | Single Family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	649,773
LTV 61% - 70% | Single Family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	233,530
LTV 61% - 70% | Commercial | Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	2,100
LTV 71% - 80% | Single Family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	50,956
LTV 71% - 80% | Commercial | Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	0
LTV greater than 80% | Single Family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	6,903
LTV greater than 80% | Multi-family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	5,964
Other | Single Family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	260,609
LTV less than or equal to 55% | Multi-family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	328,816
LTV 56% - 65% | Multi-family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	278,225
LTV 66% - 75% | Multi-family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	136,371
LTV 76% - 80% | Multi-family | Residential Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	9,720
LTV less than or equal to 50% | Commercial | Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	17,742
LTV 51% - 60% | Commercial | Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	6,642
FICO greater than or equal to 770 | Recreational Vehicles and Autos | Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	5,579
FICO 700 - 714 | Recreational Vehicles and Autos | Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	1,058
FICO 715 - 769 | Recreational Vehicles and Autos | Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	6,528
FICO 660 - 699 | Recreational Vehicles and Autos | Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	3,448
FICO less than 660 | Recreational Vehicles and Autos | Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment	$ 3,065