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Note 11 - Concentrations (Details Narrative) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2019 USD ($) Integer | Mar. 31, 2018 USD ($) Integer | Mar. 31, 2019 USD ($) Integer | Mar. 31, 2018 USD ($) Integer | Jun. 30, 2018 USD ($) Integer | Jun. 30, 2017 USD ($) Integer
Revenues | $ | $ 1,751,000 | $ 1,666,000 | $ 6,297,000 | $ 3,020,000 | $ 4,118,000 | $ 902,000
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |
Number of Major Customers | Integer | 2 | 2 | 4 | 2 | 2 | 3
Concentration Risk, Percentage | 59.00% | 92.00% | 80.00% | 85.00% | 77.00% | 58.00%
Revenues | $ |  |  |  |  | $ 3,181,000 | $ 524,000
Accounts Receivable [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |
Number of Major Suppliers | Integer | 3 | 4 | 3 | 4 |  |
Concentration Risk, Percentage | 67.00% | 65.00% | 63.00% | 57.00% |  |
Cost of Goods, Total [Member] | Supplier Concentration Risk [Member] |  |  |  |  |  |
Number of Major Suppliers | Integer |  |  |  |  | 3 | 3
Concentration Risk, Percentage |  |  |  |  | 50.00% | 57.00%
Purchases from Suppliers | $ |  |  |  |  | $ 2,285,000 | $ 1,665,000

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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