STOCK-BASED COMPENSATION: Stock Option Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Stock Option Activity - Number of Shares
Outstanding at beginning of the period (in shares) | shares	730,004
Exercised (in shares) | shares	(171,125)
Forfeited or cancelled (in shares) | shares	(2,397)
Outstanding at end of the period (in shares) | shares	556,482
Weighted-average exercise price per share
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 16.28
Exercised (in dollars per share) | $ / shares	12.80
Forfeited or cancelled (in dollars per share) | $ / shares	3.51
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 17.40
Weighted average remaining contractual term	2 years 2 months 12 days
Exercised | $	$ 3,058
Outstanding at the end of the period | $	$ 1,369
Exercisable at the end of the period (in shares) | shares	536,509
Exercisable at the end of the period (in dollars per share) | $ / shares	$ 18.02
Exercisable at the end of the period	2 years
Exercisable at the end of the period | $	$ 1,023