ACCOUNTS RECEIVABLE AND CONTRACT COSTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Receivables [Abstract]
Allowances for doubtful accounts	$ 40	$ 23
Contract retainage balance included in accounts receivable	$ 202	257
Expected collection period of retainage balance	1 year
Expected collection period of retainage balance after the related contracts have received final acceptance and approval	45 days
Costs and estimated earnings (loss) on uncompleted contracts
Costs incurred on uncompleted contracts	$ 966	1,890
Estimated earnings	70	226
Costs and estimated earnings (loss) on uncompleted contracts	1,036	2,116
Less billings to date	1,112	2,503
Net costs and estimated earnings (loss) in excess of (less than) billings	(76)	(387)
Costs and estimated earnings (loss) on uncompleted contracts included in the consolidated balance sheets
Costs and estimated earnings in excess of billings on uncompleted contracts (included in other current assets)	89	182
Billings in excess of costs and estimated earnings on uncompleted contracts (included in other current liabilities)	(165)	(569)
Net costs and estimated earnings (loss) in excess of (less than) billings	$ (76)	$ (387)