Represents the capital conservation buffer, above the regulatory minimum capital ratios.

No definition available.

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- Definition

The minimum capital conservation buffer, above the regulatory minimum capital ratios, required for capital adequacy.

+ References

No definition available.

+ Details

Name:	ffic_CapitalConservationBufferRequiredForCapitalAdequacy
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- Definition

The minimum common equity Tier One Capital Ratio (common equity tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

+ References

No definition available.

+ Details

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- Definition

The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826

+ Details

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- Definition

The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

+ References

+ Details

Name:	us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
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- Definition

The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826

+ Details

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Data Type:	num:percentItemType
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- Details

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- Details

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- Details

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Note 14 - Regulatory Capital (Details Textual)	Jan. 01, 2019	Dec. 31, 2016	Dec. 31, 2014
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		4.50%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		6.00%	4.00%
Capital Required for Capital Adequacy to Risk Weighted Assets		8.00%
Tier One Leverage Capital Required for Capital Adequacy to Average Assets		4.00%
Capital Conservation Buffer Required for Capital Adequacy		0.625%
Savings Bank [Member]
Capital Conservation Buffer		6.64%
Holding Company [Member]
Capital Conservation Buffer		6.56%
Scenario, Forecast [Member]
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	7.00%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	8.50%
Capital Required for Capital Adequacy to Risk Weighted Assets	10.50%
Capital Conservation Buffer Required for Capital Adequacy	2.50%