Other intangible assets as of and consisted primarily of the fair value of identifiable assets acquired in business combinations other than tangible assets and goodwill. The gross amount and accumulated amortization of the Company's other intangible assets as of and the amortization expense for the -month periods ended and and the classification of such amortization expense within the accompanying unaudited condensed consolidated statements of income are as follows (in thousands):

 

																		Amortization Expense
		Gross Amount								Accumulated Amortization								Three-Month Periods Ended
		June 28,				March 29,				June 28,				March 29,				June 28,				June 30,
		2020				2020				2020				2020				2020				2019
Tradename and trademarks		$	3,667			$	3,667			$	1,808			$	1,747			$	61			$	61
Developed technology			1,100				1,100				321				293				28				28
Non-compete covenants			458				458				298				278				20				20
Patents			1,601				1,601				911				889				22				27
Customer relationships			7,374				7,374				5,494				5,416				78				78
Total other intangible assets		$	14,200			$	14,200			$	8,832			$	8,623			$	209			$	214
Classification within the accompanying unaudited condensed consolidated statements of income:
Cost of products sold																		$	2			$	2
Marketing and administrative expenses																			207				212
Total amortization expense																		$	209			$	214