Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Jun. 30, 2019	7,404,831
Balance at Jun. 30, 2019	$ 37,024	$ 6,333,135	$ 8,701,942	$ 15,072,101
Net income (loss)			(526,462)	(526,462)
Stock-based compensation expense		284,894		284,894
Balance at Dec. 31, 2019	$ 37,024	6,618,029	8,175,480	14,830,533
Balance (in shares) at Dec. 31, 2019	7,404,831
Balance (in shares) at Sep. 30, 2019	7,404,831
Balance at Sep. 30, 2019	$ 37,024	6,481,323	8,391,193	14,909,540
Net income (loss)			(215,713)	(215,713)
Stock-based compensation expense		136,706		136,706
Balance at Dec. 31, 2019	$ 37,024	6,618,029	8,175,480	$ 14,830,533
Balance (in shares) at Dec. 31, 2019	7,404,831
Balance (in shares) at Jun. 30, 2020	7,404,831			7,404,831
Balance at Jun. 30, 2020	$ 37,024	6,882,729	8,236,345	$ 15,156,098
Net income (loss)			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			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 (loss)			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			7,447,489