Intangible assets are comprised of the following:


	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
At March 31, 2026
Intangibles subject to amortization:
Customer relationships	8 - 20 years	$	19,600	$	4,228	$	15,372
Technology and technical know-how	9 - 20 years		26,550		3,318		23,232
Tradename	3 years		300		242		58
		$	46,450	$	7,788	$	38,662

Intangibles not subject to amortization:
Goodwill	Indefinite	$	38,078	$	—	$	38,078
Tradename	Indefinite		13,400		—		13,400
		$	51,478	$	—	$	51,478


	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
At March 31, 2025
Intangibles subject to amortization:
Customer relationships	8 - 20 years	$	16,200	$	3,041	$	13,159
Technology and technical know-how	10 - 20 years		12,600		2,290		10,310
Backlog	4 years		3,900		3,900		—
Tradename	3 years		300		142		158
		$	33,000	$	9,373	$	23,627

Intangibles not subject to amortization:
Goodwill	Indefinite	$	25,520	$	—	$	25,520
Tradename	Indefinite		6,700		—		6,700
		$	32,220	$	—	$	32,220

A portion of Technology and technical know-how, tradenames, and Customer relationships are amortized in Selling, general and administrative expense on a straight line basis over each of their estimated useful lives. Backlog and a portion of technology and technical know-how are amortized in Cost of products sold over the projected conversion period based on management estimates at time of purchase. Intangible asset amortization was $2,315, $2,218 and $2,157 for fiscal 2026, fiscal 2025 and fiscal 2024, respectively. Inventory step up amortization of $191 was expensed in fiscal 2026 for the FlackTek acquisition. The estimated annual amortization expense is as follows: