SEGMENT INFORMATION (Details)	12 Months Ended
Sep. 30, 2016 USD ($) Segment	Sep. 30, 2015 USD ($)
SEGMENT INFORMATION [Abstract]
Number of reportable segments \| Segment	3
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers	$ 49,801,000	$ 41,142,000
Operating income (loss)	(5,334,000)	1,894,000
Identifiable assets, excluding goodwill	61,179,000	34,181,000
Goodwill	7,794,000	1,435,000
Controls [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Goodwill	1,435
Chargers [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Goodwill	6,359,000
Reportable Segments [Member] \| Controls [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers	34,907,000	39,029,000
Operating income (loss)	835,000	4,589,000
Identifiable assets, excluding goodwill	40,880,000	25,702,000
Goodwill	1,435,000	1,435,000
Reportable Segments [Member] \| Capacitors [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers	1,526,000	2,113,000
Operating income (loss)	74,000	271,000
Identifiable assets, excluding goodwill	894,000	1,176,000
Goodwill	0	0
Reportable Segments [Member] \| Chargers [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers	13,368,000	0
Operating income (loss)	(585,000)	0
Identifiable assets, excluding goodwill	9,231,000	0
Goodwill	6,359,000	0
Intersegment Eliminations [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers		3,000
Intersegment Eliminations [Member] \| Controls [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers		0
Intersegment Eliminations [Member] \| Capacitors [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers		3,000
Intersegment Eliminations [Member] \| Chargers [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers		0
Corporate [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales to external customers	0	0
Operating income (loss)	(5,658,000)	(2,966,000)
Identifiable assets, excluding goodwill	10,174,000	7,303,000
Goodwill	$ 0	$ 0

All assets excluding goodwill.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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The net result for the period of deducting operating expenses from operating revenues.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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