Note 5 - Loans Receivable, Net (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Receivable Loans and Leases, Commitments to Originate or Purchase Loans	$ 38,157	$ 13,183
Loans and Leases Receivable, Related Parties, Ending Balance	100	100	$ 100
Servicing Liability for Others, Unpaid Principal Balance	505,700	480,600	$ 471,400
Fixed Rate Loans [Member]
Receivable Loans and Leases, Commitments to Originate or Purchase Loans	$ 19,000	$ 11,000
Fixed Rate Loans [Member] \| Minimum [Member]
Receivable Loans and Leases, Commitments Interest Percentage	3.00%	4.125%
Fixed Rate Loans [Member] \| Maximum [Member]
Receivable Loans and Leases, Commitments Interest Percentage	5.65%	6.375%

Interest rates on fixed rate loans included in total commitments to originate or purchase loans.

No definition available.

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- Definition

Value of fixed rate loans included in total commitments to originate or purchase loans.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Value of the unpaid principal balances for the liability for loans serviced for others.

+ References

No definition available.

+ Details

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- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(e))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Details

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