FHLBP Advances and Short-Term Borrowed Funds (Aggregate short-term borrowings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Repurchase Agreements [Member]
Short-term Debt [Line Items]
Amount outstanding at end of year	$ 32,416	$ 19,221
Weighted average interest rate at end of year	0.20%	0.16%
Maximum amount outstanding at any month-end	$ 35,271	$ 35,555
Daily average amount outstanding	$ 25,574	$ 19,531
Weighted average interest rate for the year	0.20%	0.20%
Other Short-Term Borrowings [Member]
Short-term Debt [Line Items]
Maximum amount outstanding at any month-end		$ 600
Daily average amount outstanding	$ 204	$ 276
Weighted average interest rate for the year	0.51%	0.64%