Fair Value Disclosures (Details - Inputs) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Weighted Average [Member] | Mortgage Backed Securities Only Issued By US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon rate	3.16%
Weighted Average [Member] | Collateralized Mortgage Obligations Issued By US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon rate	3.47%
Weighted Average [Member] | Non-agency CMOs [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon rate	3.43%
Weighted Average [Member] | Non-agency CMOs [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	4.00%
Default rate	19.00%
Loss severity	38.00%
Prepayment rate	8.00%
Weighted Average [Member] | Mortgage Backed Securities Issued By Private Enterprises Underlying Loans [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon rate	3.07%
Maturity (years)	21
Maximum [Member] | Non-agency CMOs [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	10.00%
Default rate	53.00%
Loss severity	66.00%
Prepayment rate	24.00%
Maximum [Member] | Mortgage Backed Securities Issued By Private Enterprises Underlying Loans [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon rate	6.42%
Maturity (years)	25
Maximum [Member] | One- To Four-Family [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	2,150
Maximum [Member] | Home Equity [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	1,475
Maximum [Member] | Real Estate Owned [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	1,000
Minimum [Member] | Non-agency CMOs [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Yield	3.00%
Default rate	4.00%
Loss severity	16.00%
Prepayment rate	3.00%
Minimum [Member] | Mortgage Backed Securities Issued By Private Enterprises Underlying Loans [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Coupon rate	2.86%
Maturity (years)	20
Minimum [Member] | One- To Four-Family [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	25
Minimum [Member] | Home Equity [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	8
Minimum [Member] | Real Estate Owned [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	13
Average [member] | One- To Four-Family [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	367
Average [member] | Home Equity [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	264
Average [member] | Real Estate Owned [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraised Value	273