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Note 12 - Regulatory and Operational Matters - Regulatory Capital Amounts and Ratios (Details) $ in Thousands | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jan. 01, 2019
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Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio |  | 0.1 |  |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  |  |  | 0.105
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio |  | 0.08 |  |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio |  |  |  | 0.085
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.065 |  | 0.07
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio |  | 0.09 |  |
Parent Company [Member] |  |  |  |
Total Capital (to Risk Weighted Assets) Actual Amount |  | $ 89,597 | $ 90,083 |
Total Capital (to Risk Weighted Assets) Actual Ratio |  | 0.10405 | 0.1051 |
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] |  |  |
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] |  |  |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Amount | [2] |  |  |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio | [2] |  |  |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Amount |  | $ 68,887 | $ 68,573 |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.08 | 0.08 |
Tier 1 Capital (to Risk Weighted Assets) Actual Amount |  | $ 68,832 | $ 69,957 |
Tier 1 Capital (to Risk Weighted Assets) Actual Ratio |  | 0.07994 | 0.08161 |
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] |  |  |
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] |  |  |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Amount | [2] |  |  |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio | [2] |  |  |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Amount |  | $ 51,665 | $ 51,430 |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.06 | 0.06 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Amount |  | $ 60,832 | $ 61,957 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Ratio |  | 0.07065 | 0.07228 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] |  |  |
Common Equity Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] |  |  |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Amount | [2] |  |  |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio | [2] |  |  |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Amount |  | $ 38,749 | $ 38,572 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.045 | 0.045 |
Tier 1 Capital (to Average Assets) Actual Amount |  | $ 68,832 | $ 69,957 |
Tier 1 Capital (to Average Assets) Actual Ratio |  | 0.07001 | 0.07148 |
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] |  |  |
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] |  |  |
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes Amount |  | $ 39,328 | $ 39,148 |
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes Ratio |  | 0.04 | 0.04 |
Subsidiaries [Member] |  |  |  |
Total Capital (to Risk Weighted Assets) Actual Amount |  | $ 100,779 | $ 100,953 |
Total Capital (to Risk Weighted Assets) Actual Ratio |  | 0.11758 | 0.11826 |
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] | $ 85,713 | $ 85,362 |
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] | 0.1 | 0.1 |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Amount | [2] | $ 89,999 | $ 89,630 |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio | [2] | 0.105 | 0.105 |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Amount |  | $ 68,570 | $ 68,290 |
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.08 | 0.08 |
Tier 1 Capital (to Risk Weighted Assets) Actual Amount |  | $ 90,062 | $ 90,827 |
Tier 1 Capital (to Risk Weighted Assets) Actual Ratio |  | 0.10507 | 0.1064 |
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] | $ 68,570 | $ 68,290 |
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] | 0.08 | 0.08 |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Amount | [2] | $ 72,856 | $ 72,558 |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio | [2] | 0.085 | 0.085 |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Amount |  | $ 51,428 | $ 51,217 |
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.06 | 0.06 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Amount |  | $ 90,062 | $ 90,827 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) Actual Ratio |  | 0.10507 | 0.1064 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] | $ 55,713 | $ 55,485 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] | 0.065 | 0.065 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Amount | [2] | $ 59,999 | $ 59,753 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes With Capital Buffer Ratio | [2] | 0.07 | 0.07 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Amount |  | $ 38,571 | $ 38,413 |
Common Equity Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes Ratio |  | 0.045 | 0.045 |
Tier 1 Capital (to Average Assets) Actual Amount |  | $ 90,062 | $ 90,827 |
Tier 1 Capital (to Average Assets) Actual Ratio |  | 0.09158 | 0.09279 |
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Amount | [1] | $ 49,169 | $ 48,944 |
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio | [1] | 0.05 | 0.05 |
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes Amount |  | $ 39,335 | $ 39,155 |
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes Ratio |  | 0.04 | 0.04 |
[1] | Designation as "Well Capitalized" does not apply to bank holding companies - the Company. Such categorization of capital adequacy only applies to insured depository institutions - the Bank.
[2] | The Capital Conservation Buffer implemented by the FDIC began to be phased in beginning January 1, 2016. It was not applicable to periods prior to that date and does not apply to bank holding companies - the Company.

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