XML 196 R127.htm IDEA: XBRL DOCUMENT
v3.21.1

GAIN FROM DEREGISTRATION OF SUBSIDIARIES (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
GAIN FROM DEREGISTRATION OF SUBSIDIARIES |  |  |  |
Gain from deregistration of subsidiaries | $ 608 | ¥ 3,967 | ¥ 1,841 | ¥ 2,858

X
- Definition Gain from deregistration of subsidiaries. + References No definition available. + Details
Name: | ambo_GainFromDeregistrationOfSubsidiaries
Namespace Prefix: | ambo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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