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Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 01, 2019 USD ($)
Federal Home Loan Bank Stock and Federal Reserve Bank Stock, Total	$ 7,800	$ 8,400
Impairment of Investment in Federal Home Loan Bank Stock and Federal Reserve Bank Stock	0	0
SBA Loan Funds	4,500	4,500
Provision for Loan Losses Expensed	1,303	$ (857)	$ 2,464
Goodwill, Impaired, Accumulated Impairment Loss	$ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability		$ 2,800
Deferred Tax Assets, Valuation Allowance, Total	$ 0	0
Deferred Tax Assets, Net of Valuation Allowance, Total	10,851	10,397
Unrecognized Tax Benefits, Ending Balance	$ 1,132	$ 0
Accounting Standards Update 2016-02 [Member] \| Subsequent Event [Member]
Operating Lease, Right-of-Use Asset				$ 3,400
Operating Lease, Liability, Total				$ 3,400
Vesting Period Two [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Vesting Period Three [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Domestic Tax Authority [Member] \| Internal Revenue Service (IRS) [Member]
Open Tax Year	2015 2016 2017	2015 2016 2017
Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life	40 years
Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]
Stock Value Par or Stated Value per Share \| $ / shares	$ 100
CONNECTICUT
Number of Operating Branches	7
NEW YORK
Number of Operating Branches	2