Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Net sales	$ 44,640,360	$ 42,343,059
Video Recorder Products [Member]
Net sales	23,828,900	17,693,070
Tv Tuner Products [Member]
Net sales	18,546,331	23,220,545
Other Video Products and Software [Member]
Net sales	$ 2,265,129	$ 1,429,444

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.

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=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration