STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Mar. 31, 2017	Apr. 01, 2016
Number of Options
Outstanding, beginning of period (in shares)	759,795	717,645
Granted (in shares)	50,000	0
Exercised (in shares)	0	0
Forfeited (in shares)	(30,500)	(15,500)
Expired (in shares)	(19,750)	0
Outstanding, end of period (in shares)	759,545	702,145
Wgtd. Avg. Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 4.43	$ 4.40
Granted (in dollars per share)	3.60	0.00
Exercised (in dollars per share)	0.00	0.00
Forfeited (in dollars per share)	5.70	5.99
Expired (in dollars per share)	5.37	0
Outstanding, end of period (in dollars per share)	$ 4.30	$ 4.37
For options expected to vest
Number expected to vest (in shares)	738,410	558,596
Number expected to vest (in dollars per share)	$ 4.30	$ 4.44
Weighted average remaining term, in years	4 years 10 months 28 days	5 years 3 months 18 days
Intrinsic value (000s)	$ 11	$ 239
For exercisable options
Number exercisable (in shares)	324,472	260,036
Number exercisable (in dollars per share)	$ 4.46	$ 4.84
Weighted average remaining term, in years	4 years 3 months	4 years 4 months 24 days
Intrinsic value (000s)	$ 0	$ 77
For non-exercisable options
Expense not yet recognized (000s)	$ 526	$ 597
Weighted average years to be recognized	2 years 3 months 11 days	3 years 1 month 6 days
For options exercised, Intrinsic value (000s)	$ 0	$ 0