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Note 17 - Stockholders' Equity (Tables)

12 Months Ended

Mar. 31, 2025

Notes Tables

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

		Fiscal years ended March 31,
		2025				2024
Stock options		$	8			$	40
Restricted stock and stock awards			7,732				4,563
Employee stock purchase plan			54				49
Total stock-based compensation expense		$	7,794			$	4,652

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Fiscal years ended March 31,
		2025				2024
Cost of revenues		$	536			$	293
Research and development			1,132				627
Selling, general and administrative			6,126				3,732
Total		$	7,794			$	4,652

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Options / Shares				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term				Aggregate Intrinsic Value (thousands)
Outstanding at March 31, 2024			36,206			$	6.94
Granted			—
Exercised			—
Canceled/forfeited			—
Outstanding at March 31, 2025			36,206			$	6.94				5.2			$	406
Exercisable at March 31, 2025			36,206			$	6.94				5.2			$	406
Fully vested and expected to vest at March 31, 2025			36,206			$	6.94				5.2			$	406

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

		Shares				Weighted Average Grant Date Fair Value				Intrinsic Aggregate Value (thousands)
Outstanding at March 31, 2024			1,425,654			$	6.74
Granted			891,700				21.99
Vested			(524,201	)			8.50
Forfeited			(3,000	)			5.94
Outstanding at March 31, 2025			1,790,153			$	13.82			$	32,473

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