XML 108 R93.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Note 16 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Impaired Loans, Carrying Amount | $ 224 | $ 399
Impaired Loans, Reserve | 119 | 95
Impaired Loans, Fair Value | $ 105 | $ 304

X
- Definition The amount of carrying amount of impaired loans. + References No definition available. + Details
Name: | atlo_ImpairedLoansCarryingAmount
Namespace Prefix: | atlo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of fair value of impaired loans. + References No definition available. + Details
Name: | atlo_ImpairedLoansFairValue
Namespace Prefix: | atlo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The reserve for impaired loans. + References No definition available. + Details
Name: | atlo_ImpairedLoansReserve
Namespace Prefix: | atlo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant