11. STOCK-BASED COMPENSATION - Options outstanding by exercise price (Details) - $ / shares	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Options outstanding by exercise price
Exercise Price (in dollars per share)	$ 5.03	$ 5.26
Number of Shares Underlying Options Outstanding (in shares)	7,636,716
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 5.03
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 4 months 17 days
Options Exercisable, Number Vested and Exercisable (in shares)	5,480,321
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 5.47
$0.00 - $2.00
Options outstanding by exercise price
Exercise Price, low end of range (in dollars per share)	0
Exercise Price, high end of range (in dollars per share)	$ 2
Number of Shares Underlying Options Outstanding (in shares)	822,453
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 1.91
Options Outstanding, Weighted Average Remaining Contractual Life	8 years 4 months 20 days
Options Exercisable, Number Vested and Exercisable (in shares)	632,965
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 1.91
$2.01 - $4.00
Options outstanding by exercise price
Exercise Price, low end of range (in dollars per share)	2.01
Exercise Price, high end of range (in dollars per share)	$ 4
Number of Shares Underlying Options Outstanding (in shares)	1,356,822
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 3.02
Options Outstanding, Weighted Average Remaining Contractual Life	7 years 2 months 12 days
Options Exercisable, Number Vested and Exercisable (in shares)	594,312
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 2.93
$4.01 - $6.00
Options outstanding by exercise price
Exercise Price, low end of range (in dollars per share)	4.01
Exercise Price, high end of range (in dollars per share)	$ 6
Number of Shares Underlying Options Outstanding (in shares)	3,216,716
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 5.07
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 14 days
Options Exercisable, Number Vested and Exercisable (in shares)	2,012,319
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 5.28
$6.01 - $8.00
Options outstanding by exercise price
Exercise Price, low end of range (in dollars per share)	6.01
Exercise Price, high end of range (in dollars per share)	$ 8
Number of Shares Underlying Options Outstanding (in shares)	1,616,512
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 6.97
Options Outstanding, Weighted Average Remaining Contractual Life	3 years 4 months 24 days
Options Exercisable, Number Vested and Exercisable (in shares)	1,616,512
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 6.97
$8.01 - $10.00
Options outstanding by exercise price
Exercise Price, low end of range (in dollars per share)	8.01
Exercise Price, high end of range (in dollars per share)	$ 10
Number of Shares Underlying Options Outstanding (in shares)	624,213
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 8.23
Options Outstanding, Weighted Average Remaining Contractual Life	4 years 3 months 29 days
Options Exercisable, Number Vested and Exercisable (in shares)	624,213
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 8.23