Note 2 - Change in Accounting Principle (Tables)

6 Months Ended

Dec. 31, 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 December 31, 2018	Reported		Adjustment			Adjusted
Selling, general and administrative expenses	$	1,528,374	$	30,972		$	1,559,346
Income from operations		134,121		(30,972	)		103,149
Net income	$	134,121	$	(30,972	)	$	103,149
Income per common share
Basic	$	0.02	$	(0.01	)	$	0.01
Diluted	$	0.02	$	(0.01	)	$	0.01

			Stock-Based
Statement of Operations	As Previously		Compensation			As
Six Months Ended December 31, 2018	Reported		Adjustment			Adjusted
Selling, general and administrative expenses	$	3,292,122	$	56,813		$	3,348,935
Income from operations		201,557		(56,813	)		144,744
Net income	$	201,532	$	(56,813	)	$	144,719
Income per common share
Basic	$	0.03	$	(0.01	)	$	0.02
Diluted	$	0.03	$	(0.01	)	$	0.02

			Stock-Based
Statement of Cash Flows	As Previously		Compensation			As
Six Months Ended December 31, 2018	Reported		Adjustment			Adjusted
Operating activities:
Net income	$	201,532	$	(56,813	)	$	144,719
Stock-based compensation expense	$	194,356	$	56,813		$	251,169