Earnings Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Earnings Per Share [Abstract]
Net loss	$ (4,082)	$ (1,614)
Weighted-average common shares outstanding	28,118,450	27,060,259
Weighted-average shares and dilutive potential common shares	28,118,450	27,060,259
Basic earnings per share (in dollars per share)	$ (0.15)	$ (0.06)
Diluted earnings per share (in dollars per share)	$ (0.15)	$ (0.06)