Note 2 - Change in Accounting Principle (Tables)

3 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

			Stock-Based
Balance Sheet	As Previously		Compensation			As
June 30, 2019	Reported		Adjustment			Adjusted
Equity:
Paid in capital	$	6,186,393	$	146,742		$	6,333,135
Retained earnings	$	8,848,684	$	(146,742	)	$	8,701,942

			Stock-Based
Statement of Operations	As Previously		Compensation			As
Three Months Ended September 30, 2018	Reported		Adjustment			Adjusted
Selling, general and administrative expenses	$	1,763,748	$	25,841		$	1,789,589
Income from operations		67,436		(25,841	)		41,595
Net income	$	67,411	$	(25,841	)	$	41,570
Income per common share
Basic	$	0.01	$	-		$	0.01
Diluted	$	0.01	$	-		$	0.01

			Stock-Based
Statement of Cash Flows	As Previously		Compensation			As
Three Months Ended September 30, 2018	Reported		Adjustment			Adjusted
Operating activities:
Net income	$	67,411	$	(25,841	)	$	41,570
Stock-based compensation expense	$	96,801	$	25,841		$	122,642