CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Net sales	$ 97,270	$ 138,600
Cost of goods sold	74,851	97,959
Gross profit	22,419	40,641
Selling expenses	23,498	33,614
General and administrative expenses	9,746	12,740
Net losses (gains) from sales of assets	618	(12,605)
Operating expenses	33,862	33,749
(Loss) income from operations	(11,443)	6,892
Other (expense) income:
Interest expense	(3,244)	(2,548)
Other, net	8,559	203
Total other income (expense)	5,315	(2,345)
(Loss) income before taxes	(6,128)	4,547
Income tax expense (benefit)	142	(107)
Net (loss) income	(6,270)	4,654
Less: Cumulative preferred dividends, undeclared and unpaid	142	137
Net (loss) income available to common stockholders	$ (6,412)	$ 4,517
Net income (loss) per common share - basic (in US$ per share)	$ (0.37)	$ 0.26
Net income (loss) per common share - diluted (in US$ per share)	$ (0.37)	$ 0.26
Weighted average common shares outstanding - basic (in shares)	17,420,442	17,099,851
Weighted average common shares outstanding—diluted (in shares)	17,420,442	17,518,413