STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Stock-based compensation
Stock-based compensation expense	$ 2,373	$ 4,144
Stock-based compensation awards granted (in shares)	162,510	145,260
Stock options
Stock-based compensation
Stock-based compensation expense	$ 91	$ 108
Stock options granted (in shares)	6,858	7,200
Unrecognized compensation expense	$ 473
Weighted-average vesting period (years)	2 years
Stock appreciation rights
Stock-based compensation
Stock-based compensation expense	$ 488	$ 468
Other than options granted (in shares)	71,262	63,340
Unrecognized compensation expense	$ 3,627
Weighted-average vesting period (years)	2 years 3 months 18 days
Restricted stock
Stock-based compensation
Stock-based compensation expense	$ 1,426	$ 1,374
Other than options granted (in shares)	50,380	44,890
Unrecognized compensation expense	$ 7,684
Weighted-average vesting period (years)	3 years 4 months 24 days
Performance stock
Stock-based compensation
Stock-based compensation expense	$ 368	$ 2,194
Other than options granted (in shares)	34,010	29,830
Unrecognized compensation expense	$ 2,790
Weighted-average vesting period (years)	2 years 1 month 6 days

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

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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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.

+ References

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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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.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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