CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net income	$ 15,874	$ 16,473	$ 11,940
(Accretion), amortization and depreciation
Securities	1,429	1,125	548
Bank premises and equipment	1,612	1,515	1,426
Core deposit intangible	191	256	321
Amortization of modification fees on Federal Home Loan Bank of Boston advances	21	22	70
Subordinated debt issuance costs	57	173	24
Mortgage servicing rights	140	235	151
Fair value adjustment on deposits			(4)
(Gains) and losses, including write-downs
Sales and calls of securities available-for-sale, net	(165)	2	(196)
Sales of loans, excluding capitalized servicing rights	(304)	(697)	(1,204)
Mutual Funds	120	26	(19)
Other real estate owned
Disposals of premises and equipment	3	71
Gain on redemption of bank owned life insurance	(89)		(601)
Provision (release) for loan losses	2,683	(720)	5,038
Proceeds from loans sold	11,382	34,561	59,786
Loans originated for sale	(5,135)	(33,813)	(60,985)
(Increase) decrease in deferred loan origination fees and costs, net	(716)	(657)	1,734
Mortgage servicing rights originated	(70)	(314)	(534)
(Decrease) increase in mortgage servicing rights impairment reserve		(9)	9
(Increase) decrease in interest receivable	(537)	113	(2,958)
Deferred tax (benefit) expense	(163)	389	(1,600)
Decrease (increase) in prepaid expenses	254	(337)	393
Increase in cash surrender value of life insurance policies	(717)	(556)	(495)
Decrease (increase) in income tax receivable	452	(450)
Increase (decrease) in income tax payable	37	(320)	83
Increase in other assets	(135)	(529)	(52)
Increase in accrued expenses	99	409	327
Increase (decrease) in interest payable	161	6	(35)
(Decrease) increase in other liabilities	(166)	144	(107)
Stock based compensation-restricted stock awards	1,128	930	743
Net cash provided by operating activities	27,446	18,048	13,803
Investing Activities
Redemptions of Federal Home Loan Bank of Boston stock, net	112	316	1,529
Purchases of securities available-for-sale	(54,176)	(145,297)	(37,392)
Maturity of interest-bearing time deposits with financial institutions	750
Proceeds from sales of securities available-for-sale	21,716	3,311	15,589
Proceeds from calls of securities available-for-sale	1,500	9,500	655
Proceeds from maturities of securities available-for-sale	17,346	24,675	16,270
Investment and reinvestment - Mutual Funds	(1,152)	(10)	(16)
Loan originations and principal collections, net	(152,194)	(37,844)	(107,420)
Recoveries of loans previously charged off	47	209	323
Proceeds from sale/ disposal of premises and equipment		248
Proceeds from sales of other real estate owned			314
Capital expenditures	(849)	(2,314)	(4,367)
Purchase of bank owned life insurance	(2,507)	(6,000)	(3,500)
Death benefit proceeds received	672		3,994
Net cash utilized by investing activities	(168,735)	(153,206)	(114,021)
Financing Activities
(Decrease) increase in deposit transaction accounts, net	(12,161)	219,624	205,778
Increase (decrease) in time deposits, net	34,361	(12,505)	3,794
(Decrease) increase in securities sold under agreements to repurchase, net	(4,202)	4,314	(1,414)
Short-term Federal Home Loan Bank of Boston advances, net	10,000		(21,000)
Long-term Federal Home Loan Bank of Boston advances			6,000
Long-term Federal Home Loan Bank of Boston repayments	(6,000)		(30,000)
Amortizing Federal Home Loan Bank of Boston advances			10,000
Amortizing Federal Home Loan Bank of Boston repayments	(1,677)	(5,005)	(3,318)
Issuance of Sub Debt, net of issuance costs		24,418
Repayment of Sub Debt		(10,000)
Principal payments on note payable	(42)	(38)	(38)
Decrease in finance lease obligation	(134)	(56)	(74)
Stock options exercised	222	31	53
Net settlement of restricted stock units	(183)
Common stock dividends paid	(3,691)	(3,452)	(3,286)
Net cash provided by financing activities	16,493	217,331	166,495
Net (decrease) increase in cash and cash equivalents	(124,796)	82,173	66,277
Cash and cash equivalents, beginning of year	175,335	93,162	26,885
Cash and cash equivalents, end of year	50,539	175,335	93,162
Cash paid during year
Interest	4,733	3,247	5,233
Income taxes	3,213	4,648	3,970
New Finance Lease or amendments to Finance Lease
Fixed Asset	289	2,490
Lease liability	(289)	(2,490)
Transfers from Fixed Assets to Other Assets		700
Loan transfers to Held for Sale	3,909
Loans transferred from Held for Sale to loans Held for Investment	(650)
Extension of operating lease-other assets			29
Extension of operating lease-other liabilities			$ (29)