Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Jun. 30, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	First		Second		Third		Fourth
2019	Quarter		Quarter		Quarter		Quarter
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
2018
Net sales	$	7,496,423	$	11,531,105	$	5,663,161	$	7,827,194
Gross profit		1,461,154		3,075,598		1,255,204		1,870,296
Net income		442,764		1,614,871		317,764		700,398
Net income per share -
Basic		0.19		0.69		0.14		0.30
Diluted		0.19		0.69		0.14		0.29