Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Jun. 30, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	First		Second		Third			Fourth
2020	Quarter		Quarter		Quarter			Quarter
Net sales	$	5,923,819	$	7,286,674	$	6,191,300		$	12,124,438
Gross profit		1,136,348		1,480,148		910,933			2,031,186
Net income (loss)		81,776		228,964		(103,765	)		956,693
Net income (loss) per share -
Basic		0.03		0.10		(0.04	)		0.40
Diluted		0.03		0.10		(0.04	)		0.40
2019
Net sales	$	8,337,399	$	7,303,109	$	9,218,141		$	11,619,202
Gross profit		992,934		1,516,235		2,150,439			2,403,565
Net income		61,671		217,758		922,456			1,140,809
Net income per share -
Basic		0.03		0.09		0.39			0.48
Diluted		0.03		0.09		0.39			0.47