v3.5.0.1

PROPERTY AND EQUIPMENT, NET (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2016
PROPERTY AND EQUIPMENT, NET |
Schedule of property and equipment, net |
|  | March 31, |
|  | 2015 |  | 2016 |
|  | RMB |  | RMB |
Building |  | 53,049,213 |  | 53,049,213 |
Computer equipment |  | 26,720,083 |  | 27,972,606 |
Furniture, fixtures and office equipment |  | 2,312,815 |  | 2,358,500 |
Software |  | 15,473,639 |  | 15,833,639 |
Motor vehicles |  | 2,277,113 |  | 2,401,570 |
Leasehold improvements |  | 15,514,264 |  | 16,118,799 |
|  | 115,347,127 |  | 117,734,327 |
Less: accumulated depreciation and amortization |  | (52,626,752 | ) | (60,504,600 | )
Property and equipment, net |  | 62,720,375 |  | 57,229,727 |
Schedule of allocation of depreciation expense recognized |
|  | Year Ended March 31, |
|  | 2014 |  | 2015 |  | 2016 |
|  | RMB |  | RMB |  | RMB |
Cost of revenues |  | 1,774,066 |  | 2,218,458 |  | 2,923,170 |
Research and development |  | 727,821 |  | 199,886 |  | 879,228 |
Sales and marketing |  | 460,870 |  | 464,404 |  | 514,458 |
General and administrative |  | 4,863,051 |  | 4,162,029 |  | 4,101,778 |
Total depreciation expense |  | 7,825,808 |  | 7,044,777 |  | 8,418,634 |

X
- Definition Tabular disclosure of the allocation of depreciation expense recognized to a given line item on income statement for the period. + References No definition available. + Details
Name: | atai_ScheduleOfDepreciationExpenseRecognitionTableTextBlock
Namespace Prefix: | atai_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration