v3.7.0.1
Segment Reporting - Key Operating Results of Business Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Segment Reporting Information [Line Items]    
Interest income $ 30,360 $ 21,698
Interest expense 4,302 2,337
Net interest income 26,058 19,361
Provision for loan losses 69 400
Noninterest income 7,783 6,985
Noninterest expense 24,709 19,417
Income before taxes on income 9,063 6,529
Operating Segments | Banking    
Segment Reporting Information [Line Items]    
Interest income 30,360 21,698
Interest expense 4,277 2,337
Net interest income 26,083 19,361
Provision for loan losses 69 400
Noninterest income 2,516 1,752
Noninterest expense 18,331 13,344
Income before taxes on income 10,199 7,369
Operating Segments | Wealth Management    
Segment Reporting Information [Line Items]    
Noninterest income 5,457 5,376
Noninterest expense 5,190 5,223
Income before taxes on income 267 153
Other    
Segment Reporting Information [Line Items]    
Interest expense 25  
Net interest income (25)  
Noninterest income (190) (143)
Noninterest expense 1,188 850
Income before taxes on income $ (1,403) $ (993)