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Disclosure - Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-1-organization-and-summary-of-significant-accounting-policies-details-textual Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) Details 50 false false R51.htm 050 - Disclosure - Note 2 - Investment Securities (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-2-investment-securities-details-textual Note 2 - Investment Securities (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-2-investment-securities-tables 51 false false R52.htm 051 - Disclosure - Note 2 - Investment Securities - Available-for-sale Securities (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-2-investment-securities-availableforsale-securities-details Note 2 - Investment Securities - Available-for-sale Securities (Details) Details 52 false false R53.htm 052 - 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Other Real Estate Owned - Foreclosed Properties Valuation Allowance (Details) Details 62 false false R63.htm 062 - Disclosure - Note 5 - Other Real Estate Owned - Classification of Other Real Estate Owned and Expenses (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-5-other-real-estate-owned-classification-of-other-real-estate-owned-and-expenses-details Note 5 - Other Real Estate Owned - Classification of Other Real Estate Owned and Expenses (Details) Details 63 false false R64.htm 063 - Disclosure - Note 6 - Property and Equipment (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-6-property-and-equipment-details-textual Note 6 - Property and Equipment (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-6-property-and-equipment-tables 64 false false R65.htm 064 - Disclosure - Note 6 - Property and Equipment - Components of Property and Equipment (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-6-property-and-equipment-components-of-property-and-equipment-details Note 6 - 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Disclosure - Note 8 - Federal Home Loan Bank Borrowings (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-8-federal-home-loan-bank-borrowings-details-textual Note 8 - Federal Home Loan Bank Borrowings (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-8-federal-home-loan-bank-borrowings-tables 69 false false R70.htm 069 - Disclosure - Note 8 - Federal Home Loan Bank Borrowings - Federal Home Loan Bank of Atlanta Borrowings (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-8-federal-home-loan-bank-borrowings-federal-home-loan-bank-of-atlanta-borrowings-details Note 8 - Federal Home Loan Bank Borrowings - Federal Home Loan Bank of Atlanta Borrowings (Details) Details 70 false false R71.htm 070 - Disclosure - Note 9 - Subordinated Notes (Details Textual) Notes http://www.hometownbank.com/20181231/role/statement-note-9-subordinated-notes-details-textual Note 9 - Subordinated Notes (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-9-subordinated-notes-tables 71 false false R72.htm 071 - 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Disclosure - Note 11 - Fair Value Measurement - Fair Value Quantitative Information (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-11-fair-value-measurement-fair-value-quantitative-information-details Note 11 - Fair Value Measurement - Fair Value Quantitative Information (Details) Details 78 false false R79.htm 078 - Disclosure - Note 11 - Fair Value Measurement - Fair Value of Financial Instruments (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-11-fair-value-measurement-fair-value-of-financial-instruments-details Note 11 - Fair Value Measurement - Fair Value of Financial Instruments (Details) Details 79 false false R80.htm 079 - Disclosure - Note 12 - Earnings Per Common Share (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-12-earnings-per-common-share-details-textual Note 12 - Earnings Per Common Share (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-12-earnings-per-common-share-tables 80 false false R81.htm 080 - Disclosure - Note 12 - Earnings Per Common Share - Earnings Per Common Share (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-12-earnings-per-common-share-earnings-per-common-share-details Note 12 - Earnings Per Common Share - Earnings Per Common Share (Details) Details 81 false false R82.htm 081 - Disclosure - Note 13 - Stock Based Compensation (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-13-stock-based-compensation-details-textual Note 13 - Stock Based Compensation (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-13-stock-based-compensation-tables 82 false false R83.htm 082 - Disclosure - Note 13 - Stock Based Compensation - Stock Option Activity (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-13-stock-based-compensation-stock-option-activity-details Note 13 - Stock Based Compensation - Stock Option Activity (Details) Details 83 false false R84.htm 083 - Disclosure - Note 13 - Stock Based Compensation - Restricted Stock Awards Activity (Details) Sheet http://www.hometownbank.com/20181231/role/statement-note-13-stock-based-compensation-restricted-stock-awards-activity-details Note 13 - Stock Based Compensation - Restricted Stock Awards Activity (Details) Details 84 false false R85.htm 084 - Disclosure - Note 14 - Salary Continuation Plan (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-14-salary-continuation-plan-details-textual Note 14 - Salary Continuation Plan (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-14-salary-continuation-plan 85 false false R86.htm 085 - Disclosure - Note 15 - Employee Benefit Plan (Details Textual) Sheet http://www.hometownbank.com/20181231/role/statement-note-15-employee-benefit-plan-details-textual Note 15 - Employee Benefit Plan (Details Textual) Details http://www.hometownbank.com/20181231/role/statement-note-15-employee-benefit-plan 86 false false R87.htm 086 - 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