Revenue from Contracts with Customers - Revenue by Customer or Customer Group (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2023	Jan. 01, 2023
Entity Wide Revenue Major Customer [Line Items]
Revenue	$ 118,532	$ 113,184	$ 253,938	$ 233,544
General Motors Company
Entity Wide Revenue Major Customer [Line Items]
Revenue	36,517	35,534	77,022	73,684
Ford Motor Company
Entity Wide Revenue Major Customer [Line Items]
Revenue	24,634	22,149	51,543	46,765
Stellantis
Entity Wide Revenue Major Customer [Line Items]
Revenue	13,200	16,995	40,497	34,150
Tier 1 Customers
Entity Wide Revenue Major Customer [Line Items]
Revenue	18,055	16,083	36,178	33,392
Commercial and Other OEM Customers
Entity Wide Revenue Major Customer [Line Items]
Revenue	14,452	13,134	28,647	27,960
Hyundai / Kia
Entity Wide Revenue Major Customer [Line Items]
Revenue	$ 11,674	$ 9,289	$ 20,051	$ 17,593