CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ 1,590,000	$ 1,947,000
Adjustments to reconcile net income (loss) to net cash:
Stock compensation expense	457,000	456,000
Foreign exchange loss (gain)	17,000	(19,000)
Depreciation and amortization	1,257,000	1,238,000
Provision for doubtful accounts and sales returns	63,000	29,000
Deferred income taxes	(1,715,000)	(2,677,000)
Disposal loss (gain)	0	60,000
Non-cash R&D services	166,000	306,000
Impairment of long-lived assets	182,000	0
Other	(11,000)	113,000
Other changes in assets and liabilities:
Accounts receivable, net	(788,000)	91,000
Inventories	216,000	(610,000)
Costs in excess of billings and unbilled receivables	96,000	(109,000)
Prepaid expenses and other assets	202,000	243,000
Accounts payable	(10,000)	748,000
Accrued expenses and other liabilities	295,000	(218,000)
Deferred revenue	112,000	(110,000)
Net cash from operating activities	2,129,000	1,488,000
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	0	3,000
Purchases of property, plant and equipment	(2,244,000)	(913,000)
Purchases of intangibles	(73,000)	(69,000)
Net cash from investing activities	(2,317,000)	(979,000)
Cash flows from financing activities:
Proceeds from issuance of common stock	17,000	17,000
Principal payments on capital leases	(93,000)	(106,000)
Proceeds from (payments of) equipment line of credit, net	742,000	0
Proceeds from (payments of) long-term debt	(533,000)	(621,000)
Net cash from financing activities	133,000	(710,000)
Effect of exchange rates on cash and cash equivalents	(33,000)	9,000
Net change in cash and cash equivalents	(88,000)	(192,000)
Cash and cash equivalents, beginning	2,415,000	2,607,000
Cash and cash equivalents, ending	$ 2,327,000	$ 2,415,000