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Note 11 - Geographical Sales | 9 Months Ended
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Sep. 30, 2019
Segment Reporting [Abstract] |
Segment Reporting Disclosure [Text Block] | Note 11 - Geographical Sales Geographical distribution of sales consisted of the following for the nine and three months ended September 30, 2019 and 2018:
|  | Nine Months Ended September 30, |  |  | Three Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Geographical Areas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
North America |  | $ | 12,375,085 |  |  | $ | 40,224,090 |  |  | $ | 4,247,435 |  |  | $ | 13,237,312 |
China |  |  | 11,792,589 |  |  |  | - |  |  |  | 4,958,128 |  |  |  | - |
Australia |  |  | - |  |  |  | 11,075,268 |  |  |  | - |  |  |  | 548,580 |
Asia* |  |  | - |  |  |  | 11,677,878 |  |  |  | - |  |  |  | 2,816,233 |
Other countries |  |  | 410,172 |  |  |  | 182,693 |  |  |  | 117,273 |  |  |  | 145,702 |
|  | $ | 24,577,846 |  |  | $ | 63,159,929 |  |  | $ | 9,322,836 |  |  | $ | 16,747,827 |
* excluding China

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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