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Note 15 - Restructuring Costs (Details Textual) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 29, 2018 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Sep. 30, 2018 ft²
Restructuring and Related Cost, Incurred Cost (Gain) |  |  | $ 1,806,000 |  |
Inventory Write-down |  |  | 3,607,000 | $ 2,605,000 |
Closure of Lighting Facility in New Windsor, New York [Member] |  |  |  |  |
Expected Annual Savings from Closure of Facility | $ 4,000,000 |  |  |  |
Restructuring and Related Cost, Incurred Cost (Gain) |  |  | 1,650,000 |  |
Inventory Write-down |  |  | 1,119,000 |  |
Sell Manufacturing Facility In New Windsor, New York [Member] | Forecast [Member] |  |  |  |  |
Proceeds from Sale of Manufacturing Facility, Gross |  | $ 12,000,000 |  |  |
Closure of Leased Facility in Hawthorne, California [Member] |  |  |  |  |
Restructuring and Related Cost, Incurred Cost (Gain) |  |  | 156,000 |  |
Inventory Write-down |  |  | $ 148,000 |  |
Area of Real Estate Property | ft² |  |  |  |  | 12,000

X
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314 + Details
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