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PROPERTY, PLANT AND EQUIPMENT, NET - Depreciation expense (Details) - CNY (¥)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation expense	¥ 147,507,340	¥ 140,771,102	¥ 93,600,898
Cost of revenues
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation expense	26,811,275	23,554,266	19,702,392
General and administrative expenses
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation expense	9,057,825	8,113,535	7,856,968
Selling and marketing expenses
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation expense	107,996,726	104,721,594	62,949,248
Research and development expenses
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation expense	¥ 3,641,514	¥ 4,381,707	¥ 3,092,290

X

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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