Note 4 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable, Related Parties, Ending Balance	$ 18,700	$ 12,600
Loans and Leases Receivable, Related Parties, Period Increase (Decrease), Total	(782)
Loans and Leases Receivable, Related Parties, Additions	9,213
Loans and Leases Receivable, Related Parties, Proceeds	2,331
Related Party Deposit Liabilities	6,911	15,612
Director [Member] \| Small Office Space Lease to Related Party [Member]
Revenue from Related Parties	$ 5	$ 5

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

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