FHLB Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

The Company’s FHLB borrowings and weighted average interest rates are summarized below:

	December 31, 2017					December 31, 2016
	Amount		Rate			Amount		Rate
	(dollars in thousands)
Total FHLB borrowings	$	670,077		1.76	%	$	461,280		1.55	%
By remaining period to maturity:
Less than 1 year	$	505,077		1.59	%	$	231,280		1.02	%
1 year through less than 2 years		35,000		1.60	%		130,000		1.84	%
2 years through less than 3 years		85,000		2.65	%		35,000		1.60	%
3 years through less than 4 years		45,000		2.15	%		65,000		2.82	%
4 years through 5 years		-					-		-
Total borrowings	$	670,077		1.76	%	$	461,280		1.55	%