Federal Funds Purchased and Securities Sold Under Agreements to Repurchase (Tables)

12 Months Ended

Dec. 31, 2015

Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Abstract]

Schedule of Short-term Debt [Table Text Block]

	Federal Funds Purchased			Securities Sold  Under Agreement to Repurchase
	(In thousands)
2015
Outstanding at end of year	$	—		$	58,215
Maximum outstanding at any month-end	102,000			75,313
Average balance for the year	10,008			64,320
Weighted average rate at end of year	—		%	0.05		%
Weighted average rate paid for the year	0.31		%	0.05		%
2014
Outstanding at end of year	$	—		$	30,496
Maximum outstanding at any month-end	75,000			154,448
Average balance for the year	1,671			108,191
Weighted average rate at end of year	—		%	0.05		%
Weighted average rate paid for the year	0.33		%	0.05		%
2013
Outstanding at end of year	$	—		$	102,353
Maximum outstanding at any month-end	90,000			125,971
Average balance for the year	4,732			102,643
Weighted average rate at end of year	—		%	0.05		%
Weighted average rate paid for the year	0.30		%	0.36		%