XML 63 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1
Long-Term Borrowings (Details Narrative) - USD ($)
$ in Thousands
Jul. 26, 2016
Aug. 05, 2014
Jun. 30, 2018
Dec. 31, 2017
Proceeds from issuance of subordinated long-term debt $ 147,350 $ 68,800    
Subordinated Debt [Member]        
Face amount $ 150,000 $ 70,000    
Debt instrument, interest rate, stated percentage 5.00% 5.75%    
Payments of debt issuance costs $ 2,600 $ 1,200    
Subordinated Notes, 5.0% [Member]        
Debt instrument, interest rate, stated percentage     5.00% 5.00%
Subordinated Notes, 5.75% [Member]        
Debt instrument, interest rate, stated percentage     5.75% 5.75%