Borrowings (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Summary of Short term and Long term Borrowings and Subordinated Debentures

The following table summarizes the Company's short-term borrowings, long-term borrowings and subordinated debentures as presented on the consolidated statements of condition for the dates indicated:

	December 31, 2020				Contractual Maturity												December 31, 2019
(Dollars in thousands)	Outstanding Balance		Weighted Average Contractual Rate		2021		2022		2023		2024		2025		Thereafter		Outstanding Balance		Weighted Average Contractual Rate
Short-Term Borrowings:
FHLBB borrowings	$	—			$	—	$	—	$	—	$	—	$	—	$	—	$	25,000
Customer repurchase agreements	162,439				162,439		—		—		—		—		—		237,984
FHLBB and correspondent bank overnight borrowings	—				—		—		—		—		—		—		5,825
Total short-term borrowings	$	162,439	0.34	%	$	162,439	$	—	$	—	$	—	$	—	$	—	$	268,809	1.28	%
Long-Term Borrowings:
FHLBB borrowings	$	25,000	0.98	%	$	—	$	—	$	—	$	—	$	25,000	$	—	$	10,000	1.87	%
Total long-term borrowings	$	25,000	0.98	%	$	—	$	—	$	—	$	—	$	25,000	$	—	$	10,000	1.87	%
Subordinated Debentures:
Subordinated debentures(1)	$	15,000	5.50	%	$	—	$	—	$	—	$	—	$	15,000	$	—	$	14,749	5.50	%
CCTA(2)	36,083		1.64	%	—		—		—		—		—		36,083		36,083		3.36	%
UBCT(2)	8,248		1.66	%	—		—		—		—		—		8,248		8,248		3.41	%
Total subordinated debentures	$	59,331	2.62	%	$	—	$	—	$	—	$	—	$	15,000	$	44,331	$	59,080	3.90	%

(1)    The outstanding balance of subordinated debentures was presented net of debt issuance costs of $0 and $251,000 at December 31, 2020 and 2019, respectively.

(2)    The Company has interest rate swap contracts on certain borrowings. Refer to Note 12 for further discussion of derivative instruments.

Schedule of Federal Home Loan Bank Advances

The terms of the Company's outstanding FHLBB borrowings, including overnight funding, were as follows as of the dates indicated:

	December 31,
(Dollars in thousands)	2020				2019
Stated Maturity	Outstanding Balance		Weighted Average Contractual Rate		Outstanding Balance		Weighted Average Contractual Rate
January 2020	$	—	—	%	$	30,825	1.79	%
April 2020	—		—	%	10,000		1.87	%
March 2025	25,000		0.98	%	—		—	%
Total	$	25,000			$	40,825