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Note 5 - Agreements and Commitments (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

		2019
Balance at December 31, 2018		$	432,225
Current year warranty expense			903,216
Change in estimate related to pre-existing warranties			-
Payments made			(275,736	)
Foreign currency effect			1,901
Balance at June 30 , 2019		$	1,061,606

X

- Definition

Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

+ Details

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X

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration