Note 5 - Loans - Non-performing Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	$ 730	$ 2,424
Non-accrual loans	14,059	15,710
Total non-performing loans	14,789	18,134
Mortgage Receivable [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	13,314	14,746
Non-Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	745	964
Commercial Real Estate Portfolio Segment [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing		2,424
Commercial Real Estate Portfolio Segment [Member] \| Mortgage Receivable [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	1,448	1,473
Construction Portfolio Segment [Member]
Loans ninety days or more past due and still accruing:
Loans ninety days or more past due and still accruing	730
Multi-family Residential Portfolio Segment [Member] \| Mortgage Receivable [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	2,165	3,598
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] \| Mortgage Receivable [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	2,157	1,867
One-To-Four Family - Residential Portfolio Segment [Member] \| Mortgage Receivable [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	6,969	7,808
Co-Operative Apartments Portfolio Segment [Member] \| Mortgage Receivable [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	575
Small Business Administration Portfolio Segment [Member] \| Non-Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans		46
Taxi Medallion Portfolio Segment [Member] \| Non-Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	743	918
Commercial Business and Other Portfolio Segment [Member] \| Non-Mortgage Loans [Member]
Loans ninety days or more past due and still accruing:
Non-accrual loans	$ 2

Total non-accrual loans and loans ninety days or more past due and are still accruing.

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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+ References

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-Name Accounting Standards Codification
-Topic 310
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