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v3.3.1.900

Quarterly Results of Operations (Unaudited) - Summary of Quarterly Consolidated Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Interest income | $ 23,790 | $ 23,578 | $ 21,127 | $ 20,093 | $ 19,765 | $ 19,851 | $ 20,122 | $ 16,467 | $ 88,588 | $ 76,205 | $ 74,886
Interest expense | 3,568 | 3,802 | 3,277 | 3,207 | 3,242 | 3,451 | 3,334 | 3,195 | 13,854 | 13,222 | 13,503
Net interest income | 20,222 | 19,776 | 17,850 | 16,886 | 16,523 | 16,400 | 16,788 | 13,272 | 74,734 | 62,983 | 61,383
Provision for loan losses | 342 | 300 | 1,906 | 614 | 978 | 1,741 | 339 |  | 3,162 | 3,058 | 1,920
Gain on sale of securities | 65 |  |  | 124 |  | 988 |  |  | 189 | 988 | 374
Net income | 6,175 | 4,288 | 4,728 | 5,358 | 4,948 | 4,958 | 4,778 | 3,417 | 20,549 | 18,101 | 19,876
Net income available to common shareholders | $ 6,144 | $ 4,257 | $ 4,697 | $ 5,327 | $ 4,917 | $ 4,918 | $ 4,747 | $ 3,386 | $ 20,424 | $ 17,968 | $ 19,506
Earnings per share: |  |  |  |  |  |  |  |  |  |  |
Basic | $ 0.51 | $ 0.37 | $ 0.51 | $ 0.58 | $ 0.53 | $ 0.53 | $ 0.52 | $ 0.39 | $ 1.94 | $ 1.98 | $ 2.26
Diluted | $ 0.51 | $ 0.36 | $ 0.49 | $ 0.55 | $ 0.51 | $ 0.51 | $ 0.50 | $ 0.38 | $ 1.89 | $ 1.90 | $ 2.17
Average shares outstanding: |  |  |  |  |  |  |  |  |  |  |
Basic | 11,937,247 | 11,605,976 | 9,240,005 | 9,216,011 | 9,212,156 | 9,208,707 | 9,182,986 | 8,630,966 | 10,510,296 | 9,060,702 | 8,619,330
Diluted | 12,013,743 | 11,893,254 | 9,637,586 | 9,609,506 | 9,628,240 | 9,588,332 | 9,560,939 | 9,021,786 | 10,798,208 | 9,454,125 | 9,000,963

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