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Common Stock Compensation - Stock Options by Exercise Price (Details)	6 Months Ended
	Dec. 31, 2018 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	$ 1.60
Exercise price upper range (in dollars per share)	$ 8.35
Number outstanding (in shares) | shares	333,639
Options Outstanding Weighted- Average Remaining Contractual Life	6 years 2 months 1 day
Weighted average exercise price (in dollars per share)	$ 5.61
Number exercisable (in shares) | shares	206,950
Options exercisable weighted average exercise price (in dollars per share)	$ 5.08
$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	78,500
Options Outstanding Weighted- Average Remaining Contractual Life	3 years 1 month 17 days
Weighted average exercise price (in dollars per share)	$ 3.21
Number exercisable (in shares) | shares	78,500
Options exercisable weighted average exercise price (in dollars per share)	$ 3.21
$5.30 – 5.85
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	5.30
Exercise price upper range (in dollars per share)	$ 5.85
Number outstanding (in shares) | shares	125,139
Options Outstanding Weighted- Average Remaining Contractual Life	8 years 4 months 9 days
Weighted average exercise price (in dollars per share)	$ 5.48
Number exercisable (in shares) | shares	42,450
Options exercisable weighted average exercise price (in dollars per share)	$ 5.47
$6.00 – 8.35
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	6.00
Exercise price upper range (in dollars per share)	$ 8.35
Number outstanding (in shares) | shares	130,000
Options Outstanding Weighted- Average Remaining Contractual Life	5 years 10 months 20 days
Weighted average exercise price (in dollars per share)	$ 7.19
Number exercisable (in shares) | shares	86,000
Options exercisable weighted average exercise price (in dollars per share)	$ 6.59

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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