Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Sales, net	$ 14,594	$ 14,257	$ 27,345	$ 29,429
Cost of sales	12,844	12,083	24,171	24,882
Gross profit	1,750	2,174	3,174	4,547
Selling and administrative expenses	1,020	930	1,859	1,794
Operating income	730	1,244	1,315	2,753
Other income (expense), net
Interest expense	(42)	(79)	(74)	(155)
Realized gain on sale of investment in iBio Stock	0	0	0	56
Unrealized loss on investments	(22)	(44)	(42)	(73)
Other income, net	25	8	31	16
Other income (expense), net	(39)	(115)	(85)	(156)
Income before income taxes	691	1,129	1,230	2,597
Income tax benefit (expense), net	340	95	317	(332)
Net income	$ 1,031	$ 1,224	$ 1,547	$ 2,265
Basic earnings per common share (in dollars per share)	$ 0.04	$ 0.04	$ 0.05	$ 0.08
Diluted earnings per common share (in dollars per share)	$ 0.03	$ 0.04	$ 0.05	$ 0.07
Weighted average common shares outstanding - basic (in shares)	29,823,919	29,658,661	29,823,029	29,652,302
Add: Equivalent shares outstanding (in shares)	2,623,104	2,440,843	2,617,930	2,314,734
Weighted average common shares outstanding - diluted (in shares)	32,447,023	32,099,504	32,440,959	31,967,036