DISCONTINUED OPERATIONS - Income Statement Information (Details) - USD ($)	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 0	$ 0
Income from discontinued operations	8,158,000	5,220,000
PPC [Member] | Discontinued Operations, Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	120,430,000	114,823,000
Cost of goods and services	95,944,000	95,438,000
Gross profit	24,486,000	19,385,000
Selling, general and administrative expenses	12,108,000	10,861,000
Income from discontinued operations	12,378,000	8,524,000
Interest expense, net	60,000	78,000
Other, net	852,000	(99,000)
Total other income (expense)	912,000	(21,000)
Income from discontinued operations	$ 11,466,000	$ 8,545,000