Income Taxes Income Taxes (Tables)

12 Months Ended

Sep. 30, 2017

Income Taxes [Abstract]

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

Unrecognized tax benefits activity for the years ended September 30, 2017 and 2016 is summarized below:

	2017		2016
Beginning balance	$	45,000	$	45,000
Additions (reductions) based on tax   positions related to prior years
	—		—
Additions (reductions) based on tax   positions related to the current year
	—		—
Ending balance	$	45,000	$	45,000

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

A reconciliation of the U.S. statutory tax rate to the Company’s effective tax rate follows:                                                             

	2017					2016
	Amount			Percent		Amount			Percent
U.S. statutory tax	$	(2,384,000	)	(34.0	)%	$	(4,343,000	)	(34.0	)%
Increase in valuation allowance	2,280,000			32.5		2,318,000			18.1
Goodwill writedown	—			—		2,046,000			16.0
Foreign tax rate differences	238,000			3.4		—			—
Permanent differences	18,000			0.3		45,000			0.4
State tax, net of federal benefit	(126,000		)	(1.8	)	(119,000		)	(0.9	)
Other, net	(26,000		)	(0.4	)	53,000			0.4
Effective tax rate	$	—		—	%	$	—		—	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The tax effects of temporary differences that give rise to deferred tax assets and liabilities at September 30, 2017 and 2016 are presented below:

	2017			2016
Deferred tax assets:
Inventories	$	1,543,000		$	1,558,000
Accrued compensation	539,000			528,000
Warranty accrual	150,000			244,000
Depreciation	100,000			98,000
Allowance for doubtful accounts receivable	320,000			337,000
Unearned revenue	237,000			205,000
U.S. net operating loss carryforwards	8,794,000			7,223,000
Foreign net operating loss carryforwards	1,916,000			1,575,000
Tax credits	989,000			989,000
Other	1,181,000			724,000
Gross deferred tax assets	15,769,000			13,481,000
Deferred tax liabilities:
Other	64,000			56,000
Gross deferred tax liabilities	64,000			56,000
Total deferred tax assets and liabilities	15,705,000			13,425,000
Less valuation allowance	(15,705,000		)	(13,425,000		)
Net deferred tax assets and liabilities	$	—		$	—