STOCK-BASED COMPENSATION (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2023 USD ($) installment $ / shares shares	Sep. 30, 2022 USD ($) $ / shares	Sep. 30, 2023 USD ($) installment $ / shares shares	Sep. 30, 2022 USD ($) $ / shares	Mar. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares) | shares	147,774		147,774
Vesting percentage			100.00%
Weighted-average fair value at the grant date (in dollars per share) | $ / shares	$ 73.07	$ 71.32	$ 73.07	$ 72.56
Stock-based compensation (reversal) related to stock option and restricted stock plans, net of cancellations | $			$ (1,895,079)	$ 7,636,636
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of authorized common stock reserved for issuance (in shares) | shares	3,350,000		3,350,000
Options outstanding (in shares) | shares	296,263		296,263		314,742
Total unrecognized stock-based compensation expense related to non-vested stock options | $	$ 700,000		$ 700,000
Weighted average period for recognition			1 year 2 months 12 days
Stock-based compensation (reversal) related to stock option and restricted stock plans, net of cancellations | $	$ (4,374,277)	$ 676,704	$ (4,060,930)	1,444,759
Employee Stock Option | Scenario 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares) | shares	81,067		81,067
Employee Stock Option | Scenario 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares) | shares	113,174		113,174
Employee Stock Option | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Employee Stock Option | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option, expiration period			10 years
Vesting period			6 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments | installment	6		6
Awards granted (in shares) | shares			3,993		3,250
Grant date fair value (in dollars per share) | $ / shares			$ 120.12		$ 129.85
Stock-based compensation (reversal) related to stock option and restricted stock plans, net of cancellations | $	$ 1,066,500	$ 3,143,874	$ 2,165,851	$ 6,191,877
Unvested restricted stock awards | $	2,700,000		$ 2,700,000
Service Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			10 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			10 years
Weighted average period for recognition			1 year 1 month 6 days
Reversal of expense | $	$ 4,900,000