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TAXES - Reconciliation (Details)	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Reconciliation of effective income tax rate
Statutory income tax rate	25.00%	25.00%	25.00%
Effect of tax holiday and preferential tax rate	(8.20%)	(8.30%)	(8.50%)
Effect of adjustment of prior year overpaid income tax	(5.80%)	(4.80%)	(6.50%)
Effect of non-deductible expense	0.10%	0.10%	0.50%
Effect of credit loss	0.10%	0.70%	(0.40%)
Stock-based compensation	11.80%	0.00%	0.00%
Research and development tax credit	(1.30%)	(1.10%)	(0.90%)
Non-PRC entities not subject to PRC tax	3.60%	3.70%	1.20%
Unrecognized operating loss carryforwards	1.90%	(0.90%)	0.60%
Effective income tax rate	27.20%	14.40%	10.50%

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- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to effect of credit losses.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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