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

9 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Earnings per common share

	For the Three Month Periods Ended March 31,					For the Nine Month Periods Ended March 31
	2017		2016			2017		2016
Net income (loss)	$	65,600	$	(36,900	)	$	62,200	$	(2,600	)
Weighted average common shares outstanding		1,492,334		1,489,112			1,490,189		1,489,112
Dilutive securities		38		—			1,309		—
Weighted average dilutive common shares outstanding		1,492,372		1,489,112			1,491,498		1,489,112
Basic earnings (loss) per common share	$	0.04	$	(0.02	)	$	0.04	$	0.00
Diluted earnings (loss) per common share	$	0.04	$	(0.02	)	$	0.04	$	0.00