v3.5.0.1

STATUTORY RESERVES (Details) - CNY (¥)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
STATUTORY RESERVES
Required percentage of after tax profit transferred to general reserve fund	10.00%
Percentage of registered capital limit for transfer of after tax profit to general reserve fund	50.00%
Appropriation of after tax profit to general reserve fund	¥ 36,431,792	¥ 26,389,274

X

- Definition

Represents the amount of appropriations of after tax profit to general reserve fund as of balance sheet date.

+ References

No definition available.

+ Details

Name:	atai_AppropriationOfAfterTaxProfitToGeneralReserveFund
Namespace Prefix:	atai_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	atai_StatutoryReservesDisclosureAbstract
Namespace Prefix:	atai_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the ratio of the general reserve fund to registered capital after which mandatory contributions to the general reserve fund are no longer required for foreign-invested enterprises as per the laws and regulations applicable to the entity and its subsidiaries.

+ References

No definition available.

+ Details

Name:	atai_TransferOfAfterTaxProfitToGeneralReserveFundPercentageOfRegisteredCapitalLimit
Namespace Prefix:	atai_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the percentage of after tax profit required to be transferred to the general reserve fund as per the laws and regulations applicable to the entity and its subsidiaries.

+ References

No definition available.

+ Details

Name:	atai_TransferOfAfterTaxProfitToGeneralReserveFundRequiredPercentage
Namespace Prefix:	atai_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration