XML 44 R35.htm IDEA: XBRL DOCUMENT
v3.24.1

Description of Business and Summary of Significant Accounting Policies and Practices - Allowance for Advertiser Credits Activity (Detail) - Allowances for Customer Credits [Member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Allowance For Advertiser Credits [Abstract] |  |
Balance at beginning of period | $ 84 | $ 157
Additions charged against revenue | 472 | 461
Credits processed and other | 445 | 534
Balance at end of period | $ 111 | $ 84

X
- Definition Allowance for advertiser credits. + References No definition available. + Details
Name: | mchx_AllowanceForAdvertiserCreditsAbstract
Namespace Prefix: | mchx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The sum of the periodic provision charged against revenue based on an estimate of future reductions in advertiser's payment obligations related to delivered services. + References No definition available. + Details
Name: | mchx_AllowanceForAdvertiserCreditsAdditions
Namespace Prefix: | mchx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Allowance for doubtful accounts receivable write-offs and other. + References No definition available. + Details
Name: | mchx_AllowanceForDoubtfulAccountsReceivableWriteOffsAndOther
Namespace Prefix: | mchx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=mchx_AllowancesForCustomerCreditsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |