Segment and Geographic Information (Schedule of Revenues by Geographic Region) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Oct. 02, 2020 USD ($) segment	Sep. 27, 2019 USD ($)	Jul. 03, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments | segment	1
Total revenues	$ 66,290	$ 58,614
Revenue | Customer Concentration Risk | MTN Group
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage		13.00%
Accounts receivable | Customer Concentration Risk | MTN Group
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	12.00%		21.00%
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 45,499	$ 39,767
Africa and the Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	10,571	10,593
Europe and Russia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	2,262	3,407
Latin America and Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 7,958	$ 4,847