CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Balance Sheet (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Assets        
TOTAL ASSETS $ 1,418,804 $ 1,384,476 $ 1,110,459  
Liabilities and stockholders’ equity        
Long-term debt 124,445      
Total liabilities 1,273,179 1,269,764    
Total stockholders’ equity 145,625 114,712 $ 109,438 $ 94,022
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY 1,418,804 1,384,476    
Parent Company        
Assets        
Cash 7,699 3,440    
Investment in subsidiaries 168,325 142,057    
Other assets 4,316 3,012    
TOTAL ASSETS 180,340 148,509    
Liabilities and stockholders’ equity        
Other liabilities 1,191 273    
Long-term debt 33,524 33,524    
Total liabilities 34,715 33,797    
Total stockholders’ equity 145,625 114,712    
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 180,340 $ 148,509