UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Interest income:        
Loans secured by real estate $ 45,963 $ 49,139 $ 143,735 $ 151,625
Other loans 28 24 76 74
Mortgage-backed securities 677 1,192 2,456 3,974
Investment securities 223 321 1,043 1,019
Federal funds sold and other short-term investments 582 640 1,895 2,089
Total interest income 47,473 51,316 149,205 158,781
Interest expense:        
Deposits and escrow 5,302 6,498 16,449 20,081
Borrowed funds 8,773 10,646 31,465 33,325
Total interest expense 14,075 17,144 47,914 53,406
Net interest income 33,398 34,172 101,291 105,375
Provision for loan losses 126 2,217 3,858 5,305
Net interest income after provision for loan losses 33,272 31,955 97,433 100,070
Non-interest income:        
Total other than temporary impairment (OTTI) losses 0 (83) (187) (720)
Less: Non-credit portion of OTTI recorded in other comprehensive income (before taxes) 0 24 6 25
Net OTTI recognized in earnings 0 (59) (181) (695)
Service charges and other fees 1,244 1,172 2,840 2,836
Net mortgage banking income 259 136 1,475 433
Net gain on sales of securities and other assets 67 (136) 180 (69)
Income from bank owned life insurance 423 420 1,265 1,334
Other 581 616 1,772 1,954
Total non-interest income 2,574 2,149 7,351 5,793
Non-interest expense:        
Salaries and employee benefits 8,245 7,723 25,751 24,518
Stock benefit plan amortization expense 975 939 2,884 2,886
Occupancy and equipment 2,527 2,649 7,431 7,741
Federal deposit insurance premiums 502 591 1,557 2,163
Data processing costs 746 760 2,223 2,236
Other 2,776 2,302 8,009 7,363
Total non-interest expense 15,771 14,964 47,855 46,907
Income before income taxes 20,075 19,140 56,929 58,956
Income tax expense 8,280 7,976 23,356 24,374
Net income 11,795 11,164 33,573 34,582
Earnings per Share:        
Basic $ 0.34 $ 0.33 $ 0.98 $ 1.03
Diluted $ 0.34 $ 0.33 $ 0.98 $ 1.02
STATEMENTS OF COMPREHENSIVE INCOME        
Net income 11,795 11,164 33,573 34,582
Amortization and reversal of net unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of taxes of $11 and $14 during the three months ended September 30, 2012 and 2011, respectively, and $75 and $26 during the nine months ended September 30, 2012 and 2011, respectively 13 15 91 47
Reduction in non-credit component of OTTI charge, net of taxes of $6 and $290 during the three months ended September 30, 2012 and 2011, respectively, and $133 and $566 during the nine months ended September 30, 2012 and 2011, respectively 7 5 161 693
Non-credit component of OTTI charge recognized during the period, net of tax benefit of $(3) during the nine months ended September 30, 2011 0 (13) (3) (13)
Reclassification adjustment for securities sold during the period, net of taxes of $20 during nine months ended September 30, 2012, and $10 during the three months and nine months ended September 30, 2011 0 12 24 12
Net unrealized securities gains arising during the period, net of (tax benefits) taxes of $(6) and $304 during the three months ended September 30, 2012 and 2011, respectively and $(224) and $37 during the nine months ended September 30, 2012 and 2011, respectively (7) (601) (272) (557)
Defined benefit plan adjustments, net of taxes of $256 during the nine months ended September 30, 2012 and $23 during the nine months ended September 30, 2011 0 0 312 27
Comprehensive Income $ 11,808 $ 10,582 $ 33,886 $ 34,791