Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Short-term Debt

A summary of short-term borrowings is presented below.

	2017									2016
Dollars in thousands	Short-term FHLB Advances			Short-term Repurchase Agreements			Federal Funds Purchased			Short-term FHLB Advances			Federal Funds Purchased
Balance at December 31	$	247,000		$	—		$	3,499		$	221,000		$	3,461
Average balance outstanding for the period	201,712			519			3,512			187,420			3,456
Maximum balance outstanding at any month end during period	247,000			—			3,499			231,200			3,462
Weighted average interest rate for the period	1.19		%	0.12		%	1.10		%	0.60		%	0.51		%
Weighted average interest rate for balances
outstanding at December 31	1.60		%	—		%	1.50		%	0.79		%	0.75		%

Schedule of Long-term Debt Instruments

All FHLB advances are collateralized primarily by similar amounts of residential mortgage loans, certain commercial loans, mortgage backed securities and securities of U. S. Government agencies and corporations.

	Balance at December 31,
Dollars in thousands	2017		2016
Long-term FHLB advances	$	751	$	767
Long-term repurchase agreements	45,000		45,000
Term loan	—		903
Total	$	45,751	$	46,670

Schedule of Maturities of Long-term Debt

A summary of the maturities of all long-term borrowings and subordinated debentures for the next five years and thereafter is as follows:

Dollars in thousands	Long-term borrowings		Subordinated debentures owed to unconsolidated subsidiary trusts
2018	$	45,017	$	—
2019	18		—
2020	18		—
2021	19		—
2022	21		—
Thereafter	658		19,589
Total	$	45,751	$	19,589