Intrinsic value of equity-based compensation awards granted. Excludes stock and unit options.

No definition available.

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N/A

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No definition available.

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- Definition

Aggregate grant date fair value of equity-based compensation awards granted during period. Excludes stock and unit options.

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No definition available.

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- Definition

The period of performance for unrestricted shares to vest , in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Term of award in which the equity-based award remains in effect, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Number of shares of vesting of share-based compensation awards.

+ References

No definition available.

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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=6415400&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=6415400&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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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 equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- References

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

Price of a single share of a number of saleable stocks of a company.

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No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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 (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: 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.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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SHARE BASED COMPENSATION (Details) - USD ($)				12 Months Ended
SHARE BASED COMPENSATION (Details) - USD ($)	Apr. 30, 2017	Aug. 08, 2016	Jun. 22, 2016	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 6,000	$ 2,256,000	$ 2,215,000
2017 LTIP Awards [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vesting percentage			33.00%
Restricted share awards, shares [Roll Forward]
Granted (in shares)		43,549	45,651
2017 LTIP Awards [Member] \| Restricted Stock [Member] \| Vesting Periods One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vesting (in shares)	56,203	12,874		56,203
Restricted shares vesting percentage	33.00%	33.00%
2017 LTIP Awards [Member] \| Restricted Stock [Member] \| Vesting Periods Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vesting (in shares)	49,342	30,675		49,342
Restricted shares vesting percentage	33.00%	33.00%
2017 LTIP Awards [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period (in years)			3 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Volatility rate (in hundredths)		24.00%	23.80%
Risk-free interest rate (in hundredths)		0.83%	0.86%
Expected life		2 years 8 months 19 days	2 years 10 months 6 days
Share price (in dollars per share)		$ 6.57	$ 6.24
Restricted share awards, shares [Roll Forward]
Granted (in shares)		77,243	273,901
2015 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares (in shares)	4,250,000			4,250,000
Term of award				10 years
Restricted share awards, shares [Roll Forward]
Forfeited (in shares)				(274,000)
2015 Incentive Plan [Member] \| Performance Shares [Member]
Restricted share awards, shares [Roll Forward]
Granted (in shares)				604,000
2008 Incentive Award Plan [Member] \| Performance Shares [Member]
Restricted share awards, shares [Roll Forward]
Granted (in shares)				59,000	220,000
Trustee Awards [Member] \| Unrestricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 365,000	$ 352,000	$ 274,000
Long Term Incentive Plan [Member] \| 2017 LTIP Awards [Member]
Share based awards with market conditions, grant date fair value [Abstract]
Grant date fair value				1,000,000
Share based awards with market conditions, unamortized value [Abstract]
Unamortized value	$ 300,000			300,000
Restricted Share Awards [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost related to non-vested share awards	$ 485,000			$ 485,000
Weighted average period to recognize cost				1 year 8 months 12 days
Restricted share awards, shares [Roll Forward]
Unvested, beginning of period (in shares)					107,536	104,855
Granted (in shares)				253,263		107,536
Vested during year (in shares)				(21,308)	(107,536)	(79,181)
Forfeited (in shares)				(36,817)		(25,674)
Unvested, end of period (in shares)	195,138			195,138		107,536
Weighted avg grant-date fair value [Abstract]
Unvested, beginning of period (in dollars per share)					$ 7.17	$ 8.72
Granted (in dollars per share)				$ 6.16	$ 7.17	7.17
Vested during period (in dollars per share)				5.95		8.72
Forfeited (in dollars per share)				6.24		8.72
Unvested, end of period (in dollars per share)	$ 6.17			$ 6.17		$ 7.17
Awards vested during period (in shares)				$ 127,000	$ 647,000	$ 568,000