3.23.2 html 211 280 1 true 42 0 false 6 false false R1.htm 000 - Document - Document And Entity Information Sheet http://www.hartehanks.com/20230630/role/statement-document-and-entity-information Document And Entity Information Cover 1 false false R2.htm 001 - Statement - Condensed Consolidated Balance Sheets (Current period Unaudited) Sheet http://www.hartehanks.com/20230630/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited Condensed Consolidated Balance Sheets (Current period Unaudited) Statements 2 false false R3.htm 002 - Statement - Condensed Consolidated Balance Sheets (Current period Unaudited) (Parentheticals) Sheet http://www.hartehanks.com/20230630/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals Condensed Consolidated Balance Sheets (Current period Unaudited) (Parentheticals) Statements 3 false false R4.htm 003 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) Sheet http://www.hartehanks.com/20230630/role/statement-condensed-consolidated-statements-of-comprehensive-income-unaudited Condensed Consolidated Statements of Comprehensive Income (Unaudited) Statements 4 false false R5.htm 004 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) Sheet http://www.hartehanks.com/20230630/role/statement-condensed-consolidated-statements-of-comprehensive-income-unauditedED701B75-63F5-45C0-8C1B-827A7F2FA470 Condensed Consolidated Statements of Comprehensive Income (Unaudited) Statements 5 false false R6.htm 005 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) Sheet http://www.hartehanks.com/20230630/role/statement-condensed-consolidated-statements-of-changes-in-stockholders-equity-unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) Statements 6 false false R7.htm 006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.hartehanks.com/20230630/role/statement-condensed-consolidated-statements-of-cash-flows-unaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 7 false false R8.htm 007 - Disclosure - Note A - Overview and Significant Accounting Policies Sheet http://www.hartehanks.com/20230630/role/statement-note-a-overview-and-significant-accounting-policies- Note A - Overview and Significant Accounting Policies Notes 8 false false R9.htm 008 - Disclosure - Note B - Recent Accounting Pronouncements Sheet http://www.hartehanks.com/20230630/role/statement-note-b-recent-accounting-pronouncements Note B - Recent Accounting Pronouncements Notes 9 false false R10.htm 009 - Disclosure - Note C - Revenue From Contracts With Customers Sheet http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers Note C - Revenue From Contracts With Customers Notes 10 false false R11.htm 010 - Disclosure - Note D - Leases Sheet http://www.hartehanks.com/20230630/role/statement-note-d-leases Note D - Leases Notes 11 false false R12.htm 011 - Disclosure - Note E - Convertible Preferred Stock and Share Repurchase Program Sheet http://www.hartehanks.com/20230630/role/statement-note-e-convertible-preferred-stock-and-share-repurchase-program Note E - Convertible Preferred Stock and Share Repurchase Program Notes 12 false false R13.htm 012 - Disclosure - Note F - Long-term Debt Sheet http://www.hartehanks.com/20230630/role/statement-note-f-longterm-debt Note F - Long-term Debt Notes 13 false false R14.htm 013 - Disclosure - Note G - Stock-based Compensation Sheet http://www.hartehanks.com/20230630/role/statement-note-g-stockbased-compensation Note G - Stock-based Compensation Notes 14 false false R15.htm 014 - Disclosure - Note H - Employee Benefit Plans Sheet http://www.hartehanks.com/20230630/role/statement-note-h-employee-benefit-plans Note H - Employee Benefit Plans Notes 15 false false R16.htm 015 - Disclosure - Note I - Income Taxes Sheet http://www.hartehanks.com/20230630/role/statement-note-i-income-taxes Note I - Income Taxes Notes 16 false false R17.htm 016 - Disclosure - Note J - Earnings Per Share Sheet http://www.hartehanks.com/20230630/role/statement-note-j-earnings-per-share Note J - Earnings Per Share Notes 17 false false R18.htm 017 - Disclosure - Note K - Comprehensive Income Sheet http://www.hartehanks.com/20230630/role/statement-note-k-comprehensive-income- Note K - Comprehensive Income Notes 18 false false R19.htm 018 - Disclosure - Note L - Acquisition of Inside Out Solutions, LLC Sheet http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc Note L - Acquisition of Inside Out Solutions, LLC Notes 19 false false R20.htm 019 - Disclosure - Note M - Litigation and Contingencies Sheet http://www.hartehanks.com/20230630/role/statement-note-m-litigation-and-contingencies Note M - Litigation and Contingencies Notes 20 false false R21.htm 020 - Disclosure - Note N - Segment Reporting Sheet http://www.hartehanks.com/20230630/role/statement-note-n-segment-reporting- Note N - Segment Reporting Notes 21 false false R22.htm 021 - Disclosure - Significant Accounting Policies (Policies) Sheet http://www.hartehanks.com/20230630/role/statement-significant-accounting-policies-policies Significant Accounting Policies (Policies) Policies http://www.hartehanks.com/20230630/role/statement-note-a-overview-and-significant-accounting-policies- 22 false false R23.htm 022 - Disclosure - Note C - Revenue From Contracts With Customers (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers-tables Note C - Revenue From Contracts With Customers (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers 23 false false R24.htm 023 - Disclosure - Note D - Leases (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-d-leases-tables Note D - Leases (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-d-leases 24 false false R25.htm 024 - Disclosure - Note H - Employee Benefit Plans (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-h-employee-benefit-plans-tables Note H - Employee Benefit Plans (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-h-employee-benefit-plans 25 false false R26.htm 025 - Disclosure - Note J - Earnings Per Share (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-j-earnings-per-share-tables Note J - Earnings Per Share (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-j-earnings-per-share 26 false false R27.htm 026 - Disclosure - Note K - Comprehensive Income (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-k-comprehensive-income-tables Note K - Comprehensive Income (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-k-comprehensive-income- 27 false false R28.htm 027 - Disclosure - Note L - Acquisition of Inside Out Solutions, LLC (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc-tables Note L - Acquisition of Inside Out Solutions, LLC (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc 28 false false R29.htm 028 - Disclosure - Note N - Segment Reporting (Tables) Sheet http://www.hartehanks.com/20230630/role/statement-note-n-segment-reporting-tables Note N - Segment Reporting (Tables) Tables http://www.hartehanks.com/20230630/role/statement-note-n-segment-reporting- 29 false false R30.htm 029 - Disclosure - Note A - Overview and Significant Accounting Policies (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-a-overview-and-significant-accounting-policies-details-textual Note A - Overview and Significant Accounting Policies (Details Textual) Details 30 false false R31.htm 030 - Disclosure - Note C - Revenue From Contracts With Customers (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers-details-textual Note C - Revenue From Contracts With Customers (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers-tables 31 false false R32.htm 031 - Disclosure - Note C - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers-disaggregation-of-revenue-details Note C - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) Details 32 false false R33.htm 032 - Disclosure - Note C - Revenue From Contracts With Customers - Contract Balances (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-c-revenue-from-contracts-with-customers-contract-balances-details Note C - Revenue From Contracts With Customers - Contract Balances (Details) Details 33 false false R34.htm 033 - Disclosure - Note D - Leases (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-d-leases-details-textual Note D - Leases (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-d-leases-tables 34 false false R35.htm 034 - Disclosure - Note D - Leases - Supplemental Balance Sheet Information (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-d-leases-supplemental-balance-sheet-information-details Note D - Leases - Supplemental Balance Sheet Information (Details) Details 35 false false R36.htm 035 - Disclosure - Note D - Leases - Components of Lease Expense (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-d-leases-components-of-lease-expense-details Note D - Leases - Components of Lease Expense (Details) Details 36 false false R37.htm 036 - Disclosure - Note D - Leases - Maturities of Finance and Operating Lease Liabilities (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-d-leases-maturities-of-finance-and-operating-lease-liabilities-details Note D - Leases - Maturities of Finance and Operating Lease Liabilities (Details) Details 37 false false R38.htm 037 - Disclosure - Note E - Convertible Preferred Stock and Share Repurchase Program (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-e-convertible-preferred-stock-and-share-repurchase-program-details-textual Note E - Convertible Preferred Stock and Share Repurchase Program (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-e-convertible-preferred-stock-and-share-repurchase-program 38 false false R39.htm 038 - Disclosure - Note F - Long-term Debt (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-f-longterm-debt-details-textual Note F - Long-term Debt (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-f-longterm-debt 39 false false R40.htm 039 - Disclosure - Note G - Stock-based Compensation (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-g-stockbased-compensation-details-textual Note G - Stock-based Compensation (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-g-stockbased-compensation 40 false false R41.htm 040 - Disclosure - Note H - Employee Benefit Plans (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-h-employee-benefit-plans-details-textual Note H - Employee Benefit Plans (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-h-employee-benefit-plans-tables 41 false false R42.htm 041 - Disclosure - Note H - Employee Benefit Plans - Net Period of Net Periodic Cost (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-h-employee-benefit-plans-net-period-of-net-periodic-cost-details Note H - Employee Benefit Plans - Net Period of Net Periodic Cost (Details) Details 42 false false R43.htm 042 - Disclosure - Note I - Income Taxes (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-i-income-taxes-details-textual Note I - Income Taxes (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-i-income-taxes 43 false false R44.htm 043 - Disclosure - Note J - Earnings Per Share (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-j-earnings-per-share-details-textual Note J - Earnings Per Share (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-j-earnings-per-share-tables 44 false false R45.htm 044 - Disclosure - Note J - Earnings Per Share - Reconciliations of Basic and Diluted EPS (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-j-earnings-per-share-reconciliations-of-basic-and-diluted-eps-details Note J - Earnings Per Share - Reconciliations of Basic and Diluted EPS (Details) Details 45 false false R46.htm 045 - Disclosure - Note K - Comprehensive Income - Changes in Accumulated Other Comprehensive Loss by Component (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-k-comprehensive-income-changes-in-accumulated-other-comprehensive-loss-by-component-details Note K - Comprehensive Income - Changes in Accumulated Other Comprehensive Loss by Component (Details) Details 46 false false R47.htm 046 - Disclosure - Note L - Acquisition of Inside Out Solutions, LLC (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc-details-textual Note L - Acquisition of Inside Out Solutions, LLC (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc-tables 47 false false R48.htm 047 - Disclosure - Note L - Acquisition of Inside Out Solution, LLC - Business Acquisition Assets and Liabilities (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solution-llc-business-acquisition-assets-and-liabilities-details Note L - Acquisition of Inside Out Solution, LLC - Business Acquisition Assets and Liabilities (Details) Details 48 false false R49.htm 048 - Disclosure - Note L - Acquisition of Inside Out Solutions, LLC - Summary of Intangible Assets (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc-summary-of-intangible-assets-details Note L - Acquisition of Inside Out Solutions, LLC - Summary of Intangible Assets (Details) Details 49 false false R50.htm 049 - Disclosure - Note L - Acquisition of Inside Out Solutions, LLC - Schedule of Future Amortization Expense (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-l-acquisition-of-inside-out-solutions-llc-schedule-of-future-amortization-expense-details Note L - Acquisition of Inside Out Solutions, LLC - Schedule of Future Amortization Expense (Details) Details 50 false false R51.htm 050 - Disclosure - Note M - Litigation and Contingencies (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-m-litigation-and-contingencies-details-textual Note M - Litigation and Contingencies (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-m-litigation-and-contingencies 51 false false R52.htm 051 - Disclosure - Note N - Segment Reporting (Details Textual) Sheet http://www.hartehanks.com/20230630/role/statement-note-n-segment-reporting-details-textual Note N - Segment Reporting (Details Textual) Details http://www.hartehanks.com/20230630/role/statement-note-n-segment-reporting-tables 52 false false R53.htm 052 - Disclosure - Note N - Segment Reporting - Financial Information by Segment (Details) Sheet http://www.hartehanks.com/20230630/role/statement-note-n-segment-reporting-financial-information-by-segment-details Note N - Segment Reporting - Financial Information by Segment (Details) Details 53 false false All Reports Book All Reports [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 36 fact(s) appearing in ix:hidden were eligible for transformation: dei:EntityRegistrantName, hrth:CashHeldInEscrow, hrth:LesseeLeaseRemainingLeaseTerm, hrth:LesseeLeaseRenewalTerm, us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment, us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount, us-gaap:AssetImpairmentCharges, us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities, us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet, us-gaap:CapitalizedContractCostImpairmentLoss, us-gaap:CommonStockParOrStatedValuePerShare, us-gaap:CommonStockSharesAuthorized, us-gaap:CommonStockSharesIssued, us-gaap:CommonStockSharesOutstanding, us-gaap:DebtInstrumentInterestRateEffectivePercentage, us-gaap:DebtInstrumentTerm, us-gaap:DefinedBenefitPlanPlanAssetsBenefitsPaid, us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear, us-gaap:FiniteLivedIntangibleAssetsNet, us-gaap:LettersOfCreditOutstandingAmount, us-gaap:LineOfCredit, us-gaap:NumberOfOperatingSegments, us-gaap:OperatingLeasePayments, us-gaap:PreferredStockDividendRatePercentage, us-gaap:TreasuryStockCommonShares - hhs20230630_10q.htm 8, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 hhs20230630_10q.htm ex_532206.htm ex_532207.htm ex_532208.htm ex_532209.htm hrth-20230630.xsd hrth-20230630_cal.xml hrth-20230630_def.xml hrth-20230630_lab.xml hrth-20230630_pre.xml img002.jpg http://fasb.org/us-gaap/2023 http://xbrl.sec.gov/dei/2023 true true