Note 4 - Credit Facilities - Summary of Credit and Other Debt Facilities (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Mizuho Bank [Member]
Line of Credit Facility, Interest Rate at Period End	0.10%
2016	$ 7
2017	28
2018	$ 5
Sterling Credit Facility [Member]
Line of Credit Facility, Interest Rate at Period End	3.00%
2017	$ 7,554
Oxford Funding Pty Ltd [Member]
Line of Credit Facility, Interest Rate at Period End	6.30%
2016	$ 342
BBVA Bancomer Bank [Member]
Line of Credit Facility, Interest Rate at Period End	8.50%
2016	$ 257
2016	606
2017	7,582
2018	$ 5

The effective interest rate at the end of the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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