6. Earnings (Loss) per common share (Tables)

9 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings (loss) per common share

	For the Three Month Period Ended March 31, 2018	For the Three Month Period Ended March 31, 2017	For the Nine Month Period Ended March 31, 2018	For the Nine Month Period Ended March 31, 2017
Net income (loss)	$(37,700)	$65,600	$(351,500)	$62,200
Weighted average common shares outstanding	1,494,112	1,492,334	1,494,112	1,490,189
Effect of dilutive securities	-	38	-	1,309
Weighted average dilutive common shares outstanding	1,494,112	1,492,372	1,494,112	1,491,498
Basic earnings (loss) per common share	$(.03)	$.04	$(.24)	$.04
Diluted earnings (loss) per common share	$(.03)	$.04	$(.24)	$.04