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Note 18 - Income Taxes - Foreign Subsidiaries Income Tax Years Open to Examination (Details) | 12 Months Ended
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Dec. 31, 2017
ISRAEL | Earliest Tax Year [Member] |
Countries | 2015
ISRAEL | Latest Tax Year [Member] |
Countries | 2017
KENYA | Earliest Tax Year [Member] |
Countries | 2012
KENYA | Latest Tax Year [Member] |
Countries | 2017
GUATEMALA | Earliest Tax Year [Member] |
Countries | 2013
GUATEMALA | Latest Tax Year [Member] |
Countries | 2017
HONDURAS | Earliest Tax Year [Member] |
Countries | 2012
HONDURAS | Latest Tax Year [Member] |
Countries | 2017
GUADELOUPE | Earliest Tax Year [Member] |
Countries | 2015
GUADELOUPE | Latest Tax Year [Member] |
Countries | 2017
PHILIPPINES | Earliest Tax Year [Member] |
Countries | 2010
PHILIPPINES | Latest Tax Year [Member] |
Countries | 2017
NEW ZEALAND | Earliest Tax Year [Member] |
Countries | 2012
NEW ZEALAND | Latest Tax Year [Member] |
Countries | 2017

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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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