Consolidated Statements of Income (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Interest income      
Loans, including fees $ 41,233 $ 43,396 $ 45,463
AFS securities      
Taxable 7,228 7,555 6,941
Nontaxable 5,132 4,870 4,806
Trading securities 36 94 189
Federal funds sold and other 447 486 506
Total interest income 54,076 56,401 57,905
Interest expense      
Deposits 7,140 9,131 10,935
Borrowings 3,881 4,292 5,268
Total interest expense 11,021 13,423 16,203
Net interest income 43,055 42,978 41,702
Provision for loan losses 1,111 2,300 3,826
Net interest income after provision for loan losses 41,944 40,678 37,876
Noninterest income      
Service charges and fees 6,836 6,432 6,118
Net gain on sale of mortgage loans 962 1,576 538
Earnings on corporate owned life insurance policies 732 698 609
Net gain (loss) on sale of AFS securities 171 1,119 3
Other 1,474 1,705 950
Total noninterest income 10,175 11,530 8,218
Noninterest expenses      
Compensation and benefits 21,465 21,227 19,292
Furniture and equipment 4,945 4,560 4,497
Occupancy 2,653 2,519 2,470
AFS securities impairment loss      
Total OTTI impairment loss 0 486 0
Portion of loss reported in other comprehensive income 0 (204) 0
Net AFS securities impairment loss 0 282 0
Other 8,350 9,051 8,271
Total noninterest expenses 37,413 37,639 34,530
Income before federal income tax expense 14,706 14,569 11,564
Federal income tax expense 2,196 2,363 1,354
NET INCOME $ 12,510 $ 12,206 $ 10,210
Earnings per share      
Basic $ 1.63 $ 1.61 $ 1.35
Diluted $ 1.59 $ 1.56 $ 1.31
Cash dividends per basic share $ 0.84 $ 0.80 $ 0.76