STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 28, 2018	Dec. 29, 2017
Number of Options
Outstanding, beginning of period (in shares)	737,145	743,045
Granted (in shares)	0	10,000
Exercised (in shares)	(2,553)	0
Forfeited (in shares)	(17,500)	(7,000)
Expired (in shares)	(5,000)	(10,500)
Outstanding, end of period (in shares)	703,145	735,545
Wgtd. Avg. Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 4.33	$ 4.27
Granted (in dollars per share)	0.00	4.25
Exercised (in dollars per share)	3.99	0.00
Forfeited (in dollars per share)	3.61	4.25
Expired (in dollars per share)	4.08	5.24
Outstanding, end of period (in dollars per share)	$ 4.35	$ 4.26
For options expected to vest
Number expected to vest (in shares)	693,289	722,247
Number expected to vest (in dollars per share)	$ 4.34	$ 4.26
Weighted average remaining term, in years	3 years 9 months 4 days	4 years 4 months 12 days
Intrinsic value (000s)	$ 1,008	$ 50
For exercisable options
Number exercisable (in shares)	420,858	326,972
Number exercisable (in dollars per share)	$ 4.24	$ 4.36
Weighted average remaining term, in years	3 years 26 days	3 years 10 months 30 days
Intrinsic value (000s)	$ 664	$ 12
For non-exercisable options
Expense not yet recognized (000s)	$ 269	$ 366
Weighted average years to be recognized	2 years 11 months 12 days	1 year 8 months 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 23	$ 0