STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Stock-based compensation
Stock-based compensation expense	$ 1,440	$ 1,563	$ 5,510	$ 5,958
Stock-based compensation awards granted (in shares)	7,100		182,570	162,510
Stock options
Stock-based compensation
Stock-based compensation expense	$ 33	70	$ 187	$ 241
Stock options granted (in shares)			6,430	6,858
Unrecognized compensation expense	168		$ 168
Weighted-average vesting period (years)			1 year 9 months 18 days
Stock appreciation rights
Stock-based compensation
Stock-based compensation expense	$ 417	482	$ 1,592	$ 1,456
Other than options granted (in shares)	3,500		72,860	71,262
Unrecognized compensation expense	$ 2,296		$ 2,296
Weighted-average vesting period (years)			1 year 10 months 24 days
Restricted stock
Stock-based compensation
Stock-based compensation expense	$ 679	727	$ 2,636	$ 3,041
Other than options granted (in shares)	1,200		43,460	50,380
Unrecognized compensation expense	$ 5,260		$ 5,260
Weighted-average vesting period (years)			3 years 1 month 6 days
Performance stock
Stock-based compensation
Stock-based compensation expense	$ 311	$ 284	$ 1,095	$ 1,220
Other than options granted (in shares)	2,400		59,820	34,010
Unrecognized compensation expense	$ 1,062		$ 1,062
Weighted-average vesting period (years)			1 year 7 months 6 days
Performance stock \| Maximum
Stock-based compensation
Earn out basis if all goals are met (as a percent)	200.00%	200.00%	200.00%	200.00%

The number stock-based compensation awards granted during the period.

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- Definition

Percentage of third interim earn out which is a basis for vesting.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Gross number of share options (or share units) granted during the period.

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