CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 93,152,000	$ 129,139,000	$ 294,993,000	$ 420,237,000
Cost of goods sold	69,274,000	91,190,000	222,447,000	297,662,000
Gross profit	23,878,000	37,949,000	72,546,000	122,575,000
Selling expenses	22,767,000	31,968,000	71,035,000	100,488,000
General and administrative expenses	11,018,000	8,833,000	32,334,000	32,839,000
Net losses (gains) from sales of assets	488,000	287,000	(62,000)	(23,375,000)
Impairment of goodwill and intangible assets	0	42,030,000	0	42,030,000
Impairment of fixed assets	0	0	1,243,000	0
Operating expenses	34,273,000	83,118,000	104,550,000	151,982,000
Loss from operations	(10,395,000)	(45,169,000)	(32,004,000)	(29,407,000)
Other (expense) income:
Interest expense	(2,993,000)	(2,478,000)	(9,174,000)	(7,885,000)
Postretirement benefits curtailment and pension settlement charge	0	5,760,000	0	5,760,000
Other, net	(356,000)	1,076,000	17,283,000	2,941,000
Total other (expense) income	(3,349,000)	4,358,000	8,109,000	816,000
Loss before taxes	(13,744,000)	(40,811,000)	(23,895,000)	(28,591,000)
Income tax (benefit) expense	(60,000)	(1,034,000)	13,785,000	(1,222,000)
Net loss	(13,684,000)	(39,777,000)	(37,680,000)	(27,369,000)
Less: Cumulative preferred dividends, undeclared and unpaid	144,000	139,000	428,000	414,000
Undistributed net (loss) income available to common stockholders	$ (13,828,000)	$ (39,916,000)	$ (38,108,000)	$ (27,783,000)
Net income (loss) per common share - basic (in US$ per share)	$ (0.78)	$ (2.32)	$ (2.17)	$ (1.62)
Net income (loss) per common share - diluted (in US$ per share)	$ (0.78)	$ (2.32)	$ (2.17)	$ (1.62)
Weighted average common shares outstanding - basic (in shares)	17,756,619	17,230,879	17,569,026	17,161,477
Weighted average common shares outstanding—diluted (in shares)	17,756,619	17,230,879	17,569,026	17,161,477