Common Stock Incentive, Stock Purchase Plans and Other Compensation Plans - Stock Options by Exercise Price (Details)	9 Months Ended
	Mar. 31, 2017 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	$ 0.32
Exercise price upper range (in dollars per share)	$ 3.20
Number outstanding (in shares) | shares	1,167,750
Options Outstanding Weighted- Average Remaining Contractual Life	6 years 1 month 6 days
Weighted average exercise price (in dollars per share)	$ 1.25
Number exercisable (in shares) | shares	900,419
Options exercisable weighted average exercise price (in dollars per share)	$ 1.05
$0.32 – 0.71
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	0.32
Exercise price upper range (in dollars per share)	$ 0.71
Number outstanding (in shares) | shares	432,750
Options Outstanding Weighted- Average Remaining Contractual Life	3 years 4 months 23 days
Weighted average exercise price (in dollars per share)	$ 0.60
Number exercisable (in shares) | shares	432,750
Options exercisable weighted average exercise price (in dollars per share)	$ 0.60
$1.20 – 1.67
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	1.20
Exercise price upper range (in dollars per share)	$ 1.67
Number outstanding (in shares) | shares	650,000
Options Outstanding Weighted- Average Remaining Contractual Life	7 years 7 months 24 days
Weighted average exercise price (in dollars per share)	$ 1.44
Number exercisable (in shares) | shares	430,000
Options exercisable weighted average exercise price (in dollars per share)	$ 1.32
$3.20 – 3.20
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	3.20
Exercise price upper range (in dollars per share)	$ 3.20
Number outstanding (in shares) | shares	85,000
Options Outstanding Weighted- Average Remaining Contractual Life	8 years 7 days
Weighted average exercise price (in dollars per share)	$ 3.20
Number exercisable (in shares) | shares	37,669
Options exercisable weighted average exercise price (in dollars per share)	$ 3.20