Consolidated Statement of Stockholders' Deficit Statement - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In-Capital	Convertible Preferred Stock	Accumulated Other Comprehensive Loss	Accumulated Deficit	Treasury Stock
Beginning Balance (in shares) at Sep. 29, 2018		27,259,262		93,000			0
Beginning Balance at Sep. 29, 2018	$ (28,336)	$ 3	$ 70,023	$ 9,300	$ (38,427)	$ (69,235)	$ 0
Warrant exercises (in shares)		112,635
Warrant exercises	1,295		1,295
Restricted stock activity (in shares)		51,195
Restricted stock activity	(596)		(596)
Stock option activity (in shares)		524
Stock option activity	(6)		(6)
Share-based compensation expense	1,982		1,982
Tender offer share repurchases (in shares)		1,782,568		364			1,782,568
Tender offer share repurchases	(50,370)		(73)	$ (36)			$ (50,261)
Preferred stock conversion (in shares)		799,615		92,636
Preferred stock conversion	0		9,264	$ (9,264)
Net loss	(1,893)					(1,893)
Other comprehensive income, net of tax	1,048				1,048
Ending Balance (in shares) at Mar. 30, 2019		26,440,663		0			1,782,568
Ending Balance at Mar. 30, 2019	(77,590)	$ 3	81,889	$ 0	(37,379)	(71,842)	$ (50,261)
Beginning Balance (in shares) at Dec. 29, 2018		26,351,588		0			1,782,568
Beginning Balance at Dec. 29, 2018	(79,711)	$ 3	80,433	$ 0	(38,717)	(71,169)	$ (50,261)
Warrant exercises (in shares)		58,200
Warrant exercises	675		675
Restricted stock activity (in shares)		30,682
Restricted stock activity	(357)		(357)
Stock option activity (in shares)		193
Stock option activity	(2)		(2)
Share-based compensation expense	1,161		1,161
Tender offer share repurchases	(21)		(21)
Net loss	(673)					(673)
Other comprehensive income, net of tax	524
Other comprehensive income, net of tax	1,338				1,338
Ending Balance (in shares) at Mar. 30, 2019		26,440,663		0			1,782,568
Ending Balance at Mar. 30, 2019	(77,590)	$ 3	81,889	$ 0	(37,379)	(71,842)	$ (50,261)
Beginning Balance (in shares) at Sep. 28, 2019		26,476,336		0			1,782,568
Beginning Balance at Sep. 28, 2019	(67,811)	$ 3	84,271	$ 0	(56,154)	(45,649)	$ (50,282)
Warrant exercises (in shares)		368,712
Warrant exercises	4,240		4,240
Restricted stock activity (in shares)		73,592
Restricted stock activity	(1,368)		(1,368)
Stock option activity (in shares)		108,632
Stock option activity	(1,945)		(1,945)
Share-based compensation expense	2,210		2,210
Net loss	(1,042)					(1,042)
Other comprehensive income, net of tax	653				653
Ending Balance (in shares) at Apr. 04, 2020		27,027,272.000		0			1,782,568.000
Ending Balance at Apr. 04, 2020	(65,063)	$ 3	87,408	$ 0	(55,501)	(46,691)	$ (50,282)
Beginning Balance (in shares) at Jan. 04, 2020		26,511,641		0			1,782,568
Beginning Balance at Jan. 04, 2020	(67,856)	$ 3	84,302	$ 0	(55,827)	(46,052)	$ (50,282)
Warrant exercises (in shares)		336,391
Warrant exercises	3,868		3,868
Restricted stock activity (in shares)		108,563
Restricted stock activity	0
Stock option activity (in shares)		70,677
Stock option activity	(1,935)		(1,935)
Share-based compensation expense	1,173		1,173
Net loss	(639)					(639)
Other comprehensive income, net of tax	326				326
Ending Balance (in shares) at Apr. 04, 2020		27,027,272.000		0			1,782,568.000
Ending Balance at Apr. 04, 2020	$ (65,063)	$ 3	$ 87,408	$ 0	$ (55,501)	$ (46,691)	$ (50,282)