Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenue	$ 167,468	$ 318,677	$ 350,239	$ 656,774
Cost of revenue	152,155	288,676	320,576	594,308
Gross profit	15,313	30,001	29,663	62,466
Selling, general and administrative expenses	16,724	23,165	34,852	46,856
Goodwill and other intangible asset impairment	0	38,515	0	38,515
Restructuring costs	5,045	0	4,725	0
Operating loss	(6,456)	(31,679)	(9,914)	(22,905)
Other income (expense):
Interest expense	(358)	(444)	(733)	(833)
Interest income	38	417	71	891
Other	973	396	2,006	399
Loss before income tax benefit	(5,803)	(31,310)	(8,570)	(22,448)
Benefit from federal, state and foreign income taxes	(1,212)	(3,302)	(942)	(591)
Net loss	$ (4,591)	$ (28,008)	$ (7,628)	$ (21,857)
Basic loss per common share	$ (0.17)	$ (1.04)	$ (0.29)	$ (0.81)
Diluted loss per common share	$ (0.17)	$ (1.04)	$ (0.29)	$ (0.81)
Weighted average common shares outstanding:
Basic (shares)	26,489	26,925	26,377	26,930
Diluted (shares)	26,489	26,925	26,377	26,930