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Note 5 - Other Comprehensive Loss - Accumulated Other Comprehensive Loss Balances (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Balance | $ 11,977,577 | $ 12,589,024
Balance | 10,444,260 | 11,977,577
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |
Balance | (5,593,878) | (4,076,318)
Accumulated Other Comprehensive Loss, Current period change | 228,514 | (1,517,560)
Balance | (5,365,364) | (5,593,878)
AOCI Attributable to Parent [Member] |  |
Balance | (5,593,878) | (4,076,318)
Accumulated Other Comprehensive Loss, Current period change | 228,514 | (1,517,560)
Balance | $ (5,365,364) | $ (5,593,878)

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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=84158357&loc=d3e1436-108581 + Details
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