Loans Receivable, Part V (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Loan
Dec. 31, 2012
Loan
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring $ 29,587,000 $ 59,621,000
Total number of troubled debt restructurings 96 137
Valuation allowance with respect to troubled debt restructurings 2,600,000 6,400,000
Troubled Debt Restructurings by Concession Type [Abstract]    
Loans Receivable, Modifications, Loans Performing in Accordance with Modified Terms 23,717,000 55,609,000
Number of loans performing in accordance with modified terms (in loans) 53 123
Loans Receivable, Modifications, Loans in Default 5,870,000 4,012,000
Number of Loans in Default (in loans) 43 14
Loans Receivable, Modifications, Total 29,587,000 59,621,000
Number of Loans, Total (in loans) 96 137
Data on Troubled Debt Restructuring [Abstract]    
Loans modified as a troubled debt restructure 1,719,000 34,117,000
Number of loans modified as a troubled debt restructuring (in loans) 10 37
Trouble debt restructuring modified within the past twelve months for which there was a default 0 0
Number of trouble debt restructuring modified within the past twelve months for which there was a default (in loans) 0 0
Non-accrual Loans [Abstract]    
Total non-accrual loans 50,961,000 74,668,000
Ratio of total non-accrual loans to total loans, net of allowance (in hundredths) 4.66% 6.59%
Ratio of total non-accrual loans and performing troubled debt restructurings to total loans receivable (in hundredths) 5.61% 8.00%
Ratio of total non-accrual loans to total assets (in hundredths) 2.62% 4.50%
One-to Four-Family [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 18,093,000 31,768,000
Total number of troubled debt restructurings 83 112
Data on Troubled Debt Restructuring [Abstract]    
Loans modified as a troubled debt restructure 1,682,000 14,821,000
Number of loans modified as a troubled debt restructuring (in loans) 9 27
Trouble debt restructuring modified within the past twelve months for which there was a default 0 0
Number of trouble debt restructuring modified within the past twelve months for which there was a default (in loans) 0 0
Non-accrual Loans [Abstract]    
Total non-accrual loans 30,207,000 46,467,000
Over Four-Family [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 8,024,000 23,947,000
Total number of troubled debt restructurings 5 17
Data on Troubled Debt Restructuring [Abstract]    
Loans modified as a troubled debt restructure 0 18,520,000
Number of loans modified as a troubled debt restructuring (in loans) 0 8
Non-accrual Loans [Abstract]    
Total non-accrual loans 13,498,000 23,205,000
Home Equity [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 972,000 986,000
Total number of troubled debt restructurings 3 3
Data on Troubled Debt Restructuring [Abstract]    
Loans modified as a troubled debt restructure 37,000 12,000
Number of loans modified as a troubled debt restructuring (in loans) 1 1
Non-accrual Loans [Abstract]    
Total non-accrual loans 1,585,000 1,578,000
Construction and Land [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 2,241,000 2,252,000
Total number of troubled debt restructurings 3 3
Data on Troubled Debt Restructuring [Abstract]    
Loans modified as a troubled debt restructure 0 764,000
Number of loans modified as a troubled debt restructuring (in loans) 0 1
Non-accrual Loans [Abstract]    
Total non-accrual loans 4,195,000 2,215,000
Commercial Real Estate [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 257,000 668,000
Total number of troubled debt restructurings 2 2
Non-accrual Loans [Abstract]    
Total non-accrual loans 938,000 668,000
Consumer [Member]
   
Non-accrual Loans [Abstract]    
Total non-accrual loans 17,000 24,000
Commercial Loans [Member]
   
Non-accrual Loans [Abstract]    
Total non-accrual loans 521,000 511,000
Minimum [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 6,000,000  
Period of principal forbearance, reduction in interest rate or both included in typical restructured terms (in months) 6 months  
Minimum number of consecutive contractual payments received prior to consideration for a return to accrual status (in payments) 6  
Maximum [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 12,000,000  
Period of principal forbearance, reduction in interest rate or both included in typical restructured terms (in months) 12 months  
Accruing [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 10,336,000 16,011,000
Total number of troubled debt restructurings 15 23
Accruing [Member] | One-to Four-Family [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 6,218,000 9,921,000
Total number of troubled debt restructurings 13 17
Accruing [Member] | Over Four-Family [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 2,710,000 3,917,000
Total number of troubled debt restructurings 1 4
Accruing [Member] | Home Equity [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 0 0
Total number of troubled debt restructurings 0 0
Accruing [Member] | Construction and Land [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 1,408,000 2,173,000
Total number of troubled debt restructurings 1 2
Accruing [Member] | Commercial Real Estate [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 0 0
Total number of troubled debt restructurings 0 0
Non-accruing [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 19,251,000 43,610,000
Total number of troubled debt restructurings 81 114
Non-accruing [Member] | One-to Four-Family [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 11,875,000 21,847,000
Total number of troubled debt restructurings 70 95
Non-accruing [Member] | Over Four-Family [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 5,314,000 20,030,000
Total number of troubled debt restructurings 4 13
Non-accruing [Member] | Home Equity [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 972,000 986,000
Total number of troubled debt restructurings 3 3
Non-accruing [Member] | Construction and Land [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 833,000 79,000
Total number of troubled debt restructurings 2 1
Non-accruing [Member] | Commercial Real Estate [Member]
   
Troubled Debt Restructuring Note, Debtor [Abstract]    
Amount of troubled debt restructuring 257,000 668,000
Total number of troubled debt restructurings 2 2
Interest Reduction and Principal Forbearance [Member]
   
Troubled Debt Restructurings by Concession Type [Abstract]    
Loans Receivable, Modifications, Loans Performing in Accordance with Modified Terms 15,160,000 26,051,000
Number of loans performing in accordance with modified terms (in loans) 37 77
Loans Receivable, Modifications, Loans in Default 3,638,000 2,770,000
Number of Loans in Default (in loans) 19 11
Loans Receivable, Modifications, Total 18,798,000 28,821,000
Number of Loans, Total (in loans) 56 88
Interest Reduction [Member]
   
Troubled Debt Restructurings by Concession Type [Abstract]    
Loans Receivable, Modifications, Loans Performing in Accordance with Modified Terms 3,317,000 11,984,000
Number of loans performing in accordance with modified terms (in loans) 11 35
Loans Receivable, Modifications, Loans in Default 2,232,000 894,000
Number of Loans in Default (in loans) 24 2
Loans Receivable, Modifications, Total 5,549,000 12,878,000
Number of Loans, Total (in loans) 35 37
Principal Forbearance [Member]
   
Troubled Debt Restructurings by Concession Type [Abstract]    
Loans Receivable, Modifications, Loans Performing in Accordance with Modified Terms 5,240,000 17,574,000
Number of loans performing in accordance with modified terms (in loans) 5 11
Loans Receivable, Modifications, Loans in Default 0 348,000
Number of Loans in Default (in loans) 0 1
Loans Receivable, Modifications, Total $ 5,240,000 $ 17,922,000
Number of Loans, Total (in loans) 5 12