Note 9 - Customer Deposits	9 Months Ended
Sep. 30, 2013
Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract]
Other Liabilities Disclosure [Text Block]	9. Customer Deposits Customer deposits at September 30, 2013, were $627,000 ($335,000 from domestic operations and $292,000 from international operations) compared to $263,000 at December 31, 2012 ($176,000 from domestic operations and $87,000 from international operations).

The entire disclosure for other liabilities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 24

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20,24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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