CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statements of Cash Flows
Operating Activities
Net income	$ 6,685	$ 8,457	$ 2,521
(Accretion), amortization and depreciation
Securities	241	240	198
Bank premises and equipment	1,181	1,234	1,031
Core deposit intangible	601	652	291
Modification fees on Federal Home Loan Bank of Boston advances	230
Subordinated debt issuance costs	24
Mortgage servicing rights	242	356	303
Fair value adjustment on loans	(1,784)	(2,725)	(181)
Fair value adjustment on deposits	(121)	(417)	(69)
(Gains) and losses, including write-downs
Gains on sales and calls of securities available-for-sale, net	(584)	(192)
Gains on sales of loans, excluding capitalized servicing rights	(171)	(125)	(54)
Loss on other real estate owned	435	81	99
Loss on sale/disposals of premises and equipment	13	45	6
Provision for loan losses	1,835	917	1,134
Proceeds from loans sold	10,505	8,549	4,449
Loans originated for sale	(9,571)	(8,619)	(4,790)
Increase (decrease) in deferred loan origination fees and costs, net	(58)	14	(21)
Mortgage servicing rights originated	(95)	(148)	(17)
Increase (decrease) in mortgage servicing rights impairment reserve	20	3	(15)
(Increase) decrease in interest receivable	(117)	27	(162)
Deferred tax expense (benefit)	957	945	(673)
Increase in prepaid expenses	(296)	(295)	(57)
Increase in cash surrender value of life insurance policies	(353)	(371)	(245)
Increase in income tax receivable	(178)	(512)
(Decrease) increase in income taxes payable		(86)	64
(Increase) decrease in other assets	(242)	(103)	41
Increase (decrease) in accrued expenses	660	(155)	269
Decrease in interest payable	(60)	(16)	(3)
Increase in other liabilities	1,086	107	80
Stock based compensation-restricted stock awards	221	227	216
Tax benefit from stock compensation	(33)
Net cash provided by operating activities	11,273	8,090	4,415
Investing Activities
Maturity (purchase) of interest-bearing time deposits with other banks			738
(Purchase) redemption of Federal Home Loan Bank of Boston stock	(35)	339	1,825
Purchases of securities available-for-sale	(56,229)	(16,373)	(502)
Proceeds from sale of securities available-for-sale	4,865	3,861
Proceeds from calls of securities available-for-sale	14,221	10,925	8,115
Proceeds from maturities of securities available-for-sale	33,574	14,668	9,644
Loan originations and principle collections, net	(69,240)	(24,481)	(37,872)
Loans purchased			(2,711)
Recoveries of loans previously charged off	126	653	101
Proceeds from sale of other real estate owned		855	40
Purchase of life insurance policies			(1,100)
Capital expenditures	(1,285)	(779)	(2,156)
Cash and cash equivalents acquired in acquisitions			36,112
Net cash (utilized) provided by investing activities	(74,003)	(10,332)	12,234
Financing Activities
Increase in deposit transaction accounts, net	33,946	56,023	16,306
Decrease in time deposits, net	(6,588)	(16,499)	(7,552)
Increase (decrease) in securities sold under agreements to repurchase, net	1,621	(249)	1,609
Short-term Federal Home Loan Bank of Boston advances	10,000
Long-term Federal Home Loan Bank of Boston advances		(791)	(1,598)
Principal payments on Federal Home Loan Bank of Boston advances	(21)
Modification fees on Federal Home Loan Bank of Boston advances		(1,043)
Principal payments on note payable	(32)
Decrease in capital lease obligation	(4)	(2)	(1)
Stock options exercised	87	183
Tax benefit from stock compensation	33
Issuance of shares for directors' fees	141	81	65
Payoff of preferred stock		(16,000)
Issuance of subordinated debt, net of issuance costs		9,764
Common stock dividends paid	(3,086)	(3,054)	(1,918)
Series B preferred stock dividends paid		(158)	(166)
Net cash provided (utilized) by financing activities	36,097	28,255	6,745
Net (decrease) increase in cash and cash equivalents	(26,633)	26,013	23,394
Cash and cash equivalents, beginning of year	62,118	36,105	12,711
Cash and cash equivalents, end of year	35,485	62,118	36,105
Cash paid during year
Interest	3,777	3,460	2,477
Income taxes	1,238	3,216	1,258
Non-cash transfers
From other real estate owned to loans		167
Note payable to finance building purchase		376
From loans to other real estate owned	4,955	101	764
From other real estate owned to other assets	$ 747
Union Savings Bank, N.A. branch acquisition 2014
Acquisitions
Cash and cash equivalents acquired			17,462
Net loans acquired			63
Fixed assets acquired			158
Core deposit intangible			490
Deposits assumed			18,172
Accrued interest payable assumed			1
Riverside Bank acquisition 2014
Acquisitions
Cash and cash equivalents acquired			18,650
Investments acquired			11,742
Net loans acquired			196,305
Fixed assets acquired			1,543
Accrued interest receivable acquired			412
Cash surrender value of life insurance policies acquired			4,440
Other assets acquired			2,154
Core deposit intangible			2,215
Deposits assumed			211,200
Accrued interest payable assumed			28
Other liabilities assumed			$ 1,705