Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenues	$ 43,673	$ 24,653	$ 105,995	$ 67,523
Cost of sales	32,500	19,073	80,604	52,855
Gross profit	11,173	5,580	25,391	14,668
Selling, general and administrative expenses	9,286	4,081	20,313	10,328
Operating income	1,887	1,499	5,078	4,340
Interest expense, net	193	62	376	112
Income before provision for income taxes	1,694	1,437	4,702	4,228
Provision for income taxes	558	547	1,493	1,658
Net income	$ 1,136	$ 890	$ 3,209	$ 2,570
Net earnings per share - basic	$ 0.10	$ 0.08	$ .28	$ 0.27
Net earnings per share - diluted	$ 0.09	$ 0.08	$ .27	$ 0.27