CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 26, 2020	Jun. 28, 2019	Jun. 26, 2020	Jun. 28, 2019
Income Statement [Abstract]
Net sales	$ 47,364	$ 40,324	$ 136,269	$ 113,059
Cost of sales	40,722	34,719	118,885	97,808
Gross profit	6,642	5,605	17,384	15,251
Selling and administrative expenses	3,678	3,721	10,194	10,402
Operating income	2,964	1,884	7,190	4,849
Interest and financing expense	300	452	1,111	1,160
Income before income taxes	2,664	1,432	6,079	3,689
Income tax expense	550	221	1,253	736
Net Income (Loss) Attributable to Parent, Diluted		1,211	4,826	2,953
Net income/(loss)	$ 2,114	$ 1,211	$ 4,826	$ 2,953
Weighted average number of shares outstanding:
Basic (in shares)	10,424,056	10,332,548	10,388,872	10,294,173
Diluted (in shares)	10,758,092	10,642,403	10,697,288	10,556,953
Basic net income (loss) per share (in usd per share)	$ 0.20	$ 0.12	$ 0.46	$ 0.28
Diluted net income (loss) per share (in usd per share)	$ 0.20	$ 0.11	$ 0.45	$ 0.28