STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Mar. 29, 2019	Mar. 30, 2018
Number of Options
Outstanding, beginning of period (in shares)	737,145	743,045
Granted (in shares)	10,000	20,000
Exercised (in shares)		0
Forfeited (in shares)	(24,250)	(10,000)
Expired (in shares)	(5,000)	(10,500)
Outstanding, end of period (in shares)	691,395	742,545
Wgtd. Avg. Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 4.33	$ 4.27
Granted (in dollars per share)	6.20	4.00
Exercised (in dollars per share)	4.71	0.00
Forfeited (in dollars per share)	3.70	4.25
Expired (in dollars per share)	4.08	5.24
Outstanding, end of period (in dollars per share)	$ 4.36	$ 4.25
For options expected to vest
Number expected to vest (in shares)	683,135	731,316
Number expected to vest (in dollars per share)	$ 4.35	$ 4.25
Weighted average remaining term, in years	3 years 7 months 7 days	4 years 2 months 12 days
Intrinsic value (000s)	$ 1,706	$ 281
For exercisable options
Number exercisable (in shares)	510,895	428,008
Number exercisable (in dollars per share)	$ 4.18	$ 4.30
Weighted average remaining term, in years	2 years 11 months 2 days	3 years 9 months 22 days
Intrinsic value (000s)	$ 1,365	$ 153
For non-exercisable options
Expense not yet recognized (000s)	$ 230	$ 319
Weighted average years to be recognized	3 years 3 months	1 year 7 months 9 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 57	$ 0