Note 6 - Goodwill and Other Intangibles (Tables)

6 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Goodwill [Table Text Block]

	Goodwill
March 31, 2021	$	34,634
Neeltran Acquisition		8,837
March 31, 2022	$	43,471
Less impairment loss		-
September 30, 2022	$	43,471

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	September 30, 2022							March 31, 2022
	Gross Amount		Accumulated Amortization			Net Book Value		Gross Amount		Accumulated Amortization			Net Book Value		Estimated Useful Life
Licenses	$	3,610	$	(3,610	)		—	$	3,610	$	(3,610	)		—		7
Backlog	$	681	$	(668	)	$	13	$	681	$	(631	)	$	50		2
Trade name and trademarks		1,800		—			1,800		1,800		—			1,800	Indefinite
Customer relationships		9,600		(3,845	)		5,755		9,600		(2,723	)		6,877		7
Core technology and know-how		5,970		(3,627	)		2,343		5,970		(3,386	)		2,584		5-10
Intangible assets	$	21,661	$	(11,750	)	$	9,911	$	21,661	$	(10,350	)	$	11,311

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Years ended March 31,	Total
2023		1,384
2024		2,158
2025		1,648
2026		1,221
2027		1,085
Thereafter		615
Total	$	8,111