CONDENSED CONSOLIDATED INCOME STATEMENTS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Income Statement [Abstract]
Net sales	$ 21,368	$ 33,148	$ 42,344	$ 66,081
Cost of sales	19,089	27,412	38,269	54,528
Gross profit	2,279	5,736	4,075	11,553
Selling and administrative expenses	2,665	3,762	5,095	7,747
Operating profit/(loss)	(386)	1,974	(1,020)	3,806
Interest and financing expense	229	513	448	802
Income/(loss) before income taxes	(615)	1,461	(1,468)	3,004
Provision for/(benefit from) income taxes	0	0	0	0
Net income/(loss)	$ (615)	$ 1,461	$ (1,468)	$ 3,004
Net income/(loss) per common and common equivalent share:
Basic (in dollars per share)	$ (0.06)	$ 0.14	$ (0.14)	$ 0.29
Diluted (in dollars per share)	$ (0.06)	$ 0.14	$ (0.14)	$ 0.29
Weighted average number of common and common equivalent shares outstanding:
Basic (in shares)	10,173,388	10,205,031	10,168,339	10,210,539
Diluted (in shares)	10,173,388	10,205,031	10,168,339	10,210,539