v3.20.1

LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired financing receivables by class of loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Average Recorded Investment	$ 3,657	$ 3,553
Interest Income Recognized	44	39
Interest Income Recognized on Cash Basis	21	12
Residential real estate [Member]
Average Recorded Investment	718	744
Interest Income Recognized	9	6
Interest Income Recognized on Cash Basis	6	4
Commercial real estate [Member]
Average Recorded Investment	1,053	2,809
Interest Income Recognized	8	33
Interest Income Recognized on Cash Basis		$ 8
Commercial loan [Member]
Average Recorded Investment	1,386
Interest Income Recognized	27
Interest Income Recognized on Cash Basis	15
Consumer loan [Member] \| Home equity lines of credit [Member]
Average Recorded Investment	$ 500

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524

+ Details

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Period Type:	duration

- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

+ Details

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- Definition

Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

+ Details

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- Details

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- Details

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Wellesley Bancorp, Inc. 10-Q