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 and -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								Six-Month Periods Ended
		September 29,				March 31,				September 29,				March 31,				September 29,				September 30,				September 29,				September 30,
		2019				2019				2019				2019				2019				2018				2019				2018
Tradename and trademarks		$	3,667			$	3,667			$	1,623			$	1,501			$	61			$	61			$	122			$	109
Developed technology			1,100				1,100				238				183				27				28				55				55
Non-compete covenants			458				458				239				200				19				19				39				39
Patents			1,601				1,601				835				781				27				27				54				54
Customer relationships			7,374				7,374				5,260				5,103				79				79				157				157
Total other intangible assets		$	14,200			$	14,200			$	8,195			$	7,768			$	213			$	214			$	427			$	414
Classification within the accompanying unaudited condensed consolidated statements of income:
Cost of products sold																		$	1			$	1			$	3			$	3
Marketing and administrative expenses																			212				213				424				411
Total amortization expense																		$	213			$	214			$	427			$	414