CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities
Net income	$ 9,137	$ 8,126
(Accretion), amortization and depreciation
Securities	388	238
Bank premises and equipment	1,071	1,210
Core deposit intangible	247	297
Modification fees on Federal Home Loan Bank of Boston advances	64	174
Subordinated debt issuance costs	18	18
Mortgage servicing rights	84	36
Fair value adjustment on loans		(64)
Fair value adjustment on deposits	(4)	(6)
(Gains) and losses, including write-downs
Sales and calls of securities available-for-sale, net	(216)	(263)
CRA Mutual Fund	(22)	(29)
Sales of loans, excluding capitalized servicing rights	(843)	(50)
Other real estate owned		406
Provision for loan losses	4,198	539
Proceeds from loans sold	45,246	6,107
Loans originated for sale	(46,832)	(6,563)
Increase in deferred loan origination fees and costs, net	2,321	62
Mortgage servicing rights originated	(413)	(25)
Increase in interest receivable	(2,640)	(277)
Deferred tax benefit	(1,359)	(176)
Decrease (increase) in prepaid expenses	295	(147)
Increase in cash surrender value of life insurance policies	(986)	(253)
Decrease in income tax receivable		137
Increase in income tax payable	1,412
Decrease in other assets	42	728
Decrease in accrued expenses	(584)	(348)
Increase in interest payable	132	270
Decrease in other liabilities	(144)	(147)
Stock based compensation-restricted stock awards	518	393
Net cash provided by operating activities	11,130	10,393
Investing Activities
Redemption (purchase) of Federal Home Loan Bank of Boston stock, net of redemptions	84	1,921
Purchases of securities available-for-sale	(27,802)	(51,931)
Purchases of interest-bearing time deposits with financial institutions		(786)
Proceeds from sales of securities available-for-sale	12,526	41,802
Proceeds from calls of securities available-for-sale	655	75
Proceeds from principal payments and maturities of securities available-for-sale	12,226	9,523
Reinvestment of CRA Mutual Fund	(12)	(16)
Loan originations and principal collections, net	(110,743)	(6,405)
Recoveries of loans previously charged off	44	64
Proceeds from sales of other real estate owned	314	1,086
Capital expenditures	(2,384)	(1,760)
Purchase of life insurance policies		(5,750)
Proceeds from life insurance policy	3,994
Net cash used by investing activities	(111,098)	(12,177)
Financing Activities
Increase in deposit transaction accounts, net	175,508	47,642
Increase (decrease) in time deposits, net	131	(23,193)
Increase in securities sold under agreements to repurchase, net	2,355	4,484
Federal Home Loan Bank of Boston long term advances	46,001
Federal Home Loan Bank of Boston long-term maturities/payments	(21,000)	(35,000)
Federal Home Loan Bank of Boston short-term advances, net change	(30,000)	5,500
Principal payments on Amortizing FHLB Advance	(2,072)
Principal payments on note payable	(28)	(25)
Decrease in finance lease obligation	(62)	(194)
Stock options exercised	53	34
Common stock dividends paid	(2,462)	(2,361)
Net cash provided by (applied to) by financing activities	168,424	(3,113)
Net increase (decrease) in cash and cash equivalents	68,456	(4,897)
Cash and cash equivalents, beginning of period	26,885	58,445
Cash and cash equivalents, end of period	95,341	53,548
Cash paid for interest	4,124	6,805
Cash paid for income taxes	1,805	1,593
Non-cash transfers:
Adoption of ASU 2016-02 - Other assets		1,552
Adoption of ASU 2016-02 - Other liabilities		$ (1,552)