CONSOLIDATED STATEMENTS OF INCOME - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Interest income      
Interest and fees on loans $ 66,600 $ 58,861 $ 51,842
Interest and dividends on investments 6,155 5,740 6,361
Total interest income 72,755 64,601 58,203
Interest expense 2,874 2,961 3,260
Net interest income 69,881 61,640 54,943
Provision for loan losses 900 1,000 1,700
Net interest income after provision for loan losses 68,981 60,640 53,243
Non-interest income      
Service charges on deposit accounts 2,181 2,449 2,821
Card processing 4,451 4,250 4,185
Mortgage banking 8,478 7,316 6,444
Other operating 1,769 1,989 1,791
Total non-interest income 16,879 16,004 15,241
Non-interest expense      
Salaries and employee benefits 31,441 29,892 27,584
Occupancy, equipment and depreciation 4,296 3,953 3,889
Data processing 2,866 2,831 2,792
FDIC premiums 631 754 810
Card processing 2,178 2,017 2,136
Marketing and advertising 1,044 853 934
Merger-related expenses     711
Other 6,521 6,468 6,477
Total non-interest expense 48,977 46,768 45,333
Income before income tax expense 36,883 29,876 23,151
Income tax expense 13,273 10,262 8,246
Net income $ 23,610 $ 19,614 $ 14,905
Earnings per common share:      
Basic $ 1.33 $ 1.21 $ 1.02
Diluted $ 1.30 $ 1.17 $ 0.98
Weighted average common shares outstanding:      
Basic 17,732,920 16,258,424 14,677,499
Diluted 18,214,924 16,829,205 15,134,025