XML 89 R71.htm IDEA: XBRL DOCUMENT
v3.24.0.1

INVESTMENTS IN LOW-INCOME HOUSING PARTNERSHIPS (Narrative) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) Partnership | Dec. 31, 2022 USD ($)
Real Estate Partnership Investment Subsidiaries, Net Income (Loss) before Tax [Abstract] |  |
Number of limited partnerships in low-income properties | Partnership | 2 |
Investments in low-income housing partnerships | $ 1,003 | $ 1,129
Net gains on sales of low income housing partnership | $ 0 | $ 421

X
- Definition Gain (Loss) On Sale Of Low-Income Housing Partnership + References No definition available. + Details
Name: | acnb_GainLossOnSaleOfLowIncomeHousingPartnership
Namespace Prefix: | acnb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of limited partnerships in low-income properties + References No definition available. + Details
Name: | acnb_NumberofLimitedPartnershipsinLowincomeProperties
Namespace Prefix: | acnb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in equity method investee and investment in and advance to affiliate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(18)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RealEstatePartnershipInvestmentSubsidiariesNetIncomeLossBeforeTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration