Quarterly report pursuant to Section 13 or 15(d)

Assets Held for Sale, Discontinued Operations and Disposals - Operating Results of Discontinued Operations (Details)

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Assets Held for Sale, Discontinued Operations and Disposals - Operating Results of Discontinued Operations (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Income tax benefit $ (1,300,000) $ (47,000) $ (1,200,000)
Net income (loss) from discontinued operations, net of tax 1,154,000 (11,816,000) (8,113,000)
Tempress and SoLayTec | Discontinued Operations, Held-for-sale      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Revenues, net of returns and allowances 5,268,000 7,442,000 19,649,000
Cost of sales 4,374,000 5,969,000 19,726,000
Gross profit (loss) 894,000 1,473,000 (77,000)
Selling, general and administrative 1,735,000 1,814,000 7,412,000
Research, development and engineering 736,000 540,000 2,647,000
Restructuring charges (3,000) 37,000 598,000
Operating loss (1,574,000) (918,000) (10,734,000)
Gain (loss) on sale of subsidiary 1,614,000 (10,916,000) 1,614,000
Interest expense and other, net (143,000) (29,000) (213,000)
Loss from discontinued operations before income taxes (103,000) (11,863,000) (9,333,000)
Income tax benefit (1,257,000) (47,000) (1,220,000)
Net income (loss) from discontinued operations, net of tax $ 1,154,000 $ (11,816,000) $ (8,113,000)