INCOME TAXES (Components of the Company's Net Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Deferred tax liabilities:
Prepaid expenses	$ (192)	$ (405)
Acquired intangibles	(3,027)	(533)
Deferred tax liabilities	(3,219)	(938)
Deferred tax assets:
Net operating loss carryforwards	22,007	24,902
Research and development credits	1,937	1,546
ITC Credits	602
Alternative minimum tax credits		7
Accounts and notes receivable reserves	26	24
Depreciation and amortization	1,720	2,569
Deferred rent	75	114
Deferred revenue	1,400
Stock compensation	1,645	253
Scientific research and experimental development	678
Other	142	31
Deferred tax assets	30,232	29,446
Total	27,013	28,508
Valuation allowance	(27,825)	$ (28,508)
Deferred tax asset, net	$ (812)