Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Paid in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Jun. 30, 2021	8,608,706
Balance at Jun. 30, 2021	$ 43,044	$ 10,802,118	$ 8,729,939	$ 19,575,101
Net income			479,610	479,610
Stock-based compensation expense		262,785		262,785
Stock option exercises (in shares)	539,089
Stock option exercises	$ 2,695	1,387,651		1,390,346
Balance at Dec. 31, 2021	$ 45,739	12,452,554	9,209,549	21,707,842
Balance (in shares) at Dec. 31, 2021	9,147,795
Balance (in shares) at Sep. 30, 2021	9,137,795
Balance at Sep. 30, 2021	$ 45,689	12,302,395	8,630,580	20,978,664
Net income			578,969	578,969
Stock-based compensation expense		123,909		123,909
Stock option exercises (in shares)	10,000
Stock option exercises	$ 50	26,250		26,300
Balance at Dec. 31, 2021	$ 45,739	12,452,554	9,209,549	$ 21,707,842
Balance (in shares) at Dec. 31, 2021	9,147,795
Balance (in shares) at Jun. 30, 2022	9,147,795			9,147,795
Balance at Jun. 30, 2022	$ 45,739	12,653,402	9,998,348	$ 22,697,489
Net income			8,797,864	8,797,864
Stock-based compensation expense		166,708		166,708
Stock option exercises (in shares)	42,000
Stock option exercises	$ 210	88,730		88,940
Balance at Dec. 31, 2022	$ 45,949	12,908,840	18,796,212	$ 31,751,001
Balance (in shares) at Dec. 31, 2022	9,189,795			9,189,795
Balance (in shares) at Sep. 30, 2022	9,179,795
Balance at Sep. 30, 2022	$ 45,899	12,811,717	19,943,091	$ 32,800,707
Net income			(1,146,879)	(1,146,879)
Stock-based compensation expense		78,673		78,673
Stock option exercises (in shares)	10,000
Stock option exercises	$ 50	18,450		18,500
Balance at Dec. 31, 2022	$ 45,949	$ 12,908,840	$ 18,796,212	$ 31,751,001
Balance (in shares) at Dec. 31, 2022	9,189,795			9,189,795