Note 13 - Regulatory Matters (Details Textual) - USD ($) $ in Thousands	Jan. 01, 2019	Jan. 01, 2016	Jun. 30, 2021
Percentage of Capital Implementation	2.50%	0.625%
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval			$ 8,741

Amount of dividends that can be declared or paid without approval of regulatory agency.

No definition available.

Name:	us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant