Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Jun. 30, 2020	7,404,831
Balance at Jun. 30, 2020	$ 37,024	$ 6,882,729	$ 8,236,345	$ 15,156,098
Net income			635,819	635,819
Stock-based compensation expense		309,756		309,756
Stock option exercises (in shares)	42,658
Stock option exercises	$ 213	88,705		88,918
Balance at Dec. 31, 2020	$ 37,237	7,281,190	8,872,164	16,190,591
Balance (in shares) at Dec. 31, 2020	7,447,489
Balance (in shares) at Sep. 30, 2020	7,404,831
Balance at Sep. 30, 2020	$ 37,024	7,035,723	8,363,274	15,436,021
Net income			508,890	508,890
Stock-based compensation expense		156,762		156,762
Stock option exercises (in shares)	42,658
Stock option exercises	$ 213	88,705		88,918
Balance at Dec. 31, 2020	$ 37,237	7,281,190	8,872,164	$ 16,190,591
Balance (in shares) at Dec. 31, 2020	7,447,489
Balance (in shares) at Jun. 30, 2021	8,608,706			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			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			9,147,795