v3.3.0.814
Segment Reporting - Key Operating Results of Business Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Segment Reporting Information [Line Items]          
Interest income $ 17,108 $ 12,384 $ 45,259 $ 33,990  
Interest expense 1,647 1,237 4,503 3,277  
Net interest income 15,461 11,147 40,756 30,713  
Provision for loan losses 570 0 1,473 235 $ 235
Noninterest income 6,868 6,737 19,492 18,704  
Noninterest expense 16,956 13,095 44,288 39,512  
Income before taxes on income 4,803 4,789 14,487 9,670  
Operating Segments | Banking          
Segment Reporting Information [Line Items]          
Interest income 17,108 12,384 45,259 33,990  
Interest expense 1,509 1,014 3,829 2,753  
Net interest income 15,599 11,370 41,430 31,237  
Provision for loan losses 570   1,473 235  
Noninterest income 1,839 1,765 4,501 4,694  
Noninterest expense 11,653 8,216 28,138 22,773  
Income before taxes on income 5,215 4,919 16,320 12,923  
Operating Segments | Wealth Management          
Segment Reporting Information [Line Items]          
Noninterest income 5,171 5,113 15,426 14,400  
Noninterest expense 4,685 4,351 13,950 13,576  
Income before taxes on income 486 762 1,476 824  
Other          
Segment Reporting Information [Line Items]          
Interest expense 138 223 674 524  
Net interest income (138) (223) (674) (524)  
Noninterest income (142) (141) (435) (390)  
Noninterest expense 618 528 2,200 3,163  
Income before taxes on income $ (898) $ (892) $ (3,309) $ (4,077)