CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net income	$ 6,256	$ 6,685	$ 8,457
(Accretion), amortization and depreciation:
Securities	145	241	240
Bank premises and equipment	1,441	1,181	1,234
Core deposit intangible	533	601	652
Modification fees on Federal Home Loan Bank of Boston advances	234	230
Subordinated debt issuance costs	23	24
Mortgage servicing rights	169	242	356
Fair value adjustment on loans	(1,207)	(1,784)	(2,725)
Fair value adjustment on deposits	(78)	(121)	(417)
(Gains) and losses, including write-downs
Gain on sales and calls of securities available-for-sale, net	(178)	(584)	(192)
Gains on sales of loans, excluding capitalized servicing rights	(95)	(171)	(125)
Loss on other real estate owned	1,717	435	81
Loss on sale/disposals of premises and equipment	1	13	45
Provision for loan losses	1,020	1,835	917
Proceeds from loans sold	5,440	10,505	8,549
Loans originated for sale	(6,014)	(9,571)	(8,619)
(Increase) decrease in deferred loan origination fees and costs, net	(42)	(58)	14
Mortgage servicing rights originated	(63)	(95)	(148)
(Decrease) increase in mortgage servicing rights impairment reserve	(23)	20	3
(Increase) decrease in interest receivable	(229)	(117)	27
Deferred tax expense	888	957	945
Decrease (increase) in prepaid expenses	123	(296)	(295)
Increase in cash surrender value of life insurance policies	(343)	(353)	(371)
Increase in income tax receivable	(173)	(178)	(512)
Decrease in income taxes payable			(86)
Decrease (increase) in other assets	790	(242)	(103)
(Decrease) increase in accrued expenses	(643)	660	(155)
Increase (decrease) in interest payable	10	(60)	(16)
Increase in other liabilities	240	1,086	107
Stock based compensation - restricted stock awards	265	221	227
Tax benefit from stock compensation		(33)
Net cash provided by operating activities	10,207	11,273	8,090
Investing Activities
(Purchase) redemption of Federal Home Loan Bank of Boston stock	(602)	(35)	339
Purchases of securities available-for-sale	(36,654)	(56,229)	(16,373)
Proceeds from sales of securities available for sale	199	4,865	3,861
Proceeds from calls of securities available-for-sale	16,141	14,221	10,925
Proceeds from maturities of securities available-for-sale	20,427	33,574	14,668
Loan originations and principle collections, net	(32,536)	(69,240)	(24,481)
Recoveries of loans previously charged off	600	126	653
Proceeds from sales of other real estate owned	2,080		855
Capital expenditures	(1,954)	(1,285)	(779)
Net cash and cash equivalents acquired in branch acquisition	22,396
Net cash (utilized) by investing activities	(9,903)	(74,003)	(10,332)
Financing Activities
Increase in deposit transaction accounts, net	7,578	33,946	56,023
Decrease in time deposits, net	(5,208)	(6,588)	(16,499)
(Decrease) increase in securities sold under agreements to repurchase, net	(3,867)	1,621	(249)
Short-term Federal Home Loan Bank of Boston advances	17,000	10,000
Payments made on long-term Federal Home Loan Bank of Boston advances			(791)
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	(31)	(32)
Decrease in capital lease obligation	(59)	(4)	(2)
Stock options exercised	316	87	183
Tax benefit from stock compensation		33
Issuance of shares for directors' fees	81	141	81
Payoff of preferred stock			(16,000)
Issuance of subordinated debt, net of issuance costs			9,764
Common stock dividends paid	(3,113)	(3,086)	(3,054)
Series B preferred stock dividends paid			(158)
Net cash provided by financing activities	12,697	36,097	28,255
Net increase (decrease) in cash and cash equivalents	13,001	(26,633)	26,013
Cash and cash equivalents, beginning of year	35,485	62,118	36,105
Cash and cash equivalents, end of year	48,486	35,485	62,118
Cash paid during year
Interest	4,049	3,777	3,460
Income taxes	2,291	1,238	3,216
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	743	4,955	101
From other real estate owned to other assets		$ 747
Empire State Bank branch acquisition
Cash and cash equivalents acquired	22,396
Net loans acquired	7,097
Fixed assets acquired	1,491
Accrued interest receivable acquired	12
Other assets acquired	20
Core deposit intangible	633
Goodwill	1,263
Deposits assumed	31,433
Capital lease assumed	1,476
Other liabilities assumed	$ 3