CONDENSED CONSOLIDATED STATEMENTS of CASH FLOWS (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jul. 02, 2021	Jun. 26, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 2,215	$ 4,826
Non-cash adjustments:
Stock-based compensation	650	526
Depreciation and amortization	3,685	2,442
Change in reserve for doubtful accounts	(56)	94
Change in inventory reserve and warranty reserve	467	1,226
Gain on sale of property, plant and equipment	(30)
Deferred tax (income) expense	(96)	1,751
Amortization of deferred gain	(86)	(86)
Changes in operating assets and liabilities:
Accounts receivable	(1,505)	(2,796)
Unbilled contract revenue	(4,540)	(988)
Inventories	(2,705)	(3,818)
Federal income tax receivable		(517)
Other current assets	79	68
Other long-term assets	180	(330)
Accounts payable	(4,682)	(1,188)
Change in book overdraft position		(107)
Accrued expenses	(2,631)	(557)
Customer deposits	(2,205)	7,210
Net change in lease right-of-use assets and liabilities	14
Other long-term liabilities	114
Net cash flows (used in)/provided by operating activities	(11,132)	7,756
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(11,591)	(3,067)
Proceeds from disposal of property, plant and equipment	668
Proceeds received from capital grants	1,500
Net cash flows used in investing activities	(9,423)	(3,067)
CASH FLOWS FROM FINANCING ACTIVITIES
Advances from revolving credit facility	84,121	55,523
Repayments of revolving credit facility	(71,041)	(56,505)
Borrowings under other loan agreements	8,699	0
Repayments under other loan agreements	(6,603)	(3,904)
Payments under finance lease	(944)	(284)
Proceeds received from lease financing obligation	6,521	415
Debt issuance costs	(98)	(84)
Proceeds from exercise of stock options	95	161
Proceeds from employee stock plan purchases	94	87
Cash paid for taxes upon vesting of restricted stock	(485)	(98)
Net cash flows provided by/(used in) financing activities	20,359	(4,689)
Net cash change for the period	(196)	0
Cash, beginning of period	312	0
Cash, end of period	116	0
Supplemental cash flow information
Interest paid	1,526	1,094
Income taxes paid	239	20
Non-cash transactions:
Property, plant and equipment purchases included in accounts payable	$ 150	$ 90