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Note 2 - Significant Transactions - Schedule of Business Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Gross profit	$ 35,455	$ 32,109	$ 72,704	$ 63,292
GKE Acquisition [Member]
Revenues	5,863		12,117
Gross profit	3,733		7,553
GKE Acquisition [Member] | Inventory Step-up Related to Cost of Revenue [Member]
Amortization of inventory step-up recorded in cost of revenues	454		1,232
GKE Acquisition [Member] | Cost of Revenues Related to Intangibles Acquired [Member]
Amortization of inventory step-up recorded in cost of revenues	134		244
GKE Acquisition [Member] | General and Administrative Expense [Member]
Amortization of inventory step-up recorded in cost of revenues	$ 956		$ 1,488

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