Common Stock Incentive, Stock Purchase Plans and Other Compensation Plans - Stock Options by Exercise Price (Details)	3 Months Ended
	Sep. 30, 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)	$ 1.6
Exercise price upper range (in dollars per share)	$ 16
Number outstanding (in shares) | shares	365,252
Options Outstanding Weighted- Average Remaining Contractual Life	7 years 3 months 2 days
Weighted average exercise price (in dollars per share)	$ 6.07
Number exercisable (in shares) | shares	175,817
Options exercisable weighted average exercise price (in dollars per share)	$ 5.56
$1.60 – 3.55
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	1.60
Exercise price upper range (in dollars per share)	$ 3.55
Number outstanding (in shares) | shares	77,550
Options Outstanding Weighted- Average Remaining Contractual Life	3 years 1 month 10 days
Weighted average exercise price (in dollars per share)	$ 3.11
Number exercisable (in shares) | shares	77,550
Options exercisable weighted average exercise price (in dollars per share)	$ 3.11
$5.03 – 8.35
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	5.03
Exercise price upper range (in dollars per share)	$ 8.35
Number outstanding (in shares) | shares	270,702
Options Outstanding Weighted- Average Remaining Contractual Life	8 years 5 months 5 days
Weighted average exercise price (in dollars per share)	$ 6.29
Number exercisable (in shares) | shares	86,000
Options exercisable weighted average exercise price (in dollars per share)	$ 6.59
$16.00 – 16.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	16
Exercise price upper range (in dollars per share)	$ 16
Number outstanding (in shares) | shares	17,000
Options Outstanding Weighted- Average Remaining Contractual Life	7 years 6 months 7 days
Weighted average exercise price (in dollars per share)	$ 16.00
Number exercisable (in shares) | shares	12,267
Options exercisable weighted average exercise price (in dollars per share)	$ 16.00