Note 12 - Regulatory and Operational Matters (Details Textual) $ in Billions	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2019 USD ($)
Community Bank, Tier One Leverage Ratio			0.09
Community Bank, Tier One Leverage Capital Required for Capital Adequacy			$ 10
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual	0.0994	0.0986