BENEFIT PLANS: (Tables)

12 Months Ended

Apr. 30, 2017

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension cost for 2017 and 2016 was comprised of the following components (in thousands):

	Year Ended April 30,
	2017		2016
Interest cost on projected benefit obligation	$	1,146	$	1,284
Expected return on assets		(1,787)		(2,051)
Plan expenses		297		251
Recognized net actuarial loss		1,603		1,534
Total cost recognized in pretax income		1,259		1,018
(Income) cost recognized in pretax other comprehensive income		(3,002)		434
Net periodic pension cost (income)	$	(1,743)	$	1,452

Schedule of Assumptions Used [Table Text Block]

The estimated net loss, transition obligation and prior service cost for the pension plan that will be amortized from accumulated other comprehensive income into net periodic pension cost over the next fiscal year are $1,294,000, $0 and $0. Assumptions used in determining net periodic pension cost and the benefit obligation were:

	Year Ended April 30,
	2017			2016
Discount rate used to determine net periodic pension cost		3.27	%		3.48	%
Discount rate used to determine pension benefit obligation		3.52	%		3.27	%
Expected long-term rate of return on assets on assets		8.00	%		8.00	%

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The following table sets forth changes in the pension plan’s benefit obligation and assets, and summarizes components of amounts recognized in the Company’s consolidated balance sheet (in thousands):

	April 30,
	2017		2016
Change in benefit obligation:
Benefit obligation at beginning of year	$	36,418	$	38,303
Interest cost		1,146		1,284
Actuarial (gain) loss		(956)		(750)
Benefits paid		(2,364)		(2,419)
Benefit obligation at end of year	$	34,244	$	36,418
Change in plan assets:
Fair value of plan assets at beginning of year	$	23,708	$	27,044
Actual return on plan assets		2,278		(620)
Benefits paid		(2,364)		(2,419)
Plan expenses		(345)		(297)
Fair value of plan assets at end of year	$	23,277	$	23,708
Underfunded status	$	(10,967)	$	(12,710)
Recognition of underfunded status:
Accrued pension cost	$	(10,967)	$	(12,710)

Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]

The funded status of the pension plan is equal to the net liability recognized in the consolidated balance sheet. The following table summarizes the amounts recorded in accumulated other comprehensive loss, which have not yet been recognized as a component of net periodic pension costs (in thousands):

	Year Ended April 30,
	2017		2016
Pretax accumulated comprehensive loss	$	15,059	$	18,061

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

The following table summarizes the changes in accumulated other comprehensive loss related to the pension plan for the years ended April 30, 2017 and 2016 (in thousands):

	Pension Benefits
	Pretax		Net of Tax
Accumulated comprehensive loss, May 1, 2015	$	17,627	$	10,833
Net actuarial loss		1,968		1,220
Amortization of net loss		(1,534)		(952)
Accumulated comprehensive loss, April 30, 2016		18,061		11,101
Net actuarial gain		(1,399)		(867)
Amortization of net loss		(1,603)		(994)
Accumulated comprehensive loss, April 30, 2017	$	15,059	$	9,240

Schedule of Allocation of Plan Assets [Table Text Block]

The asset allocation for the pension plan by asset category was as follows:

	April 30,
	2017			2016
Equity securities		69	%		67	%
Fixed income securities		29			28
Other (principally cash and cash equivalents)		2			5
Total		100	%		100	%

Schedule of Changes in Fair Value of Plan Assets [Table Text Block]

The following tables set forth by level within the fair value hierarchy the pension plan’s assets at fair value as of April 30, 2017 and 2016 (in thousands):

2017:

	Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	568	$	568	$	-	$	-
Investments at fair value:
Equity securities		15,967		15,967		-		-
Corporate bonds and debentures		6,742		-		6,742		-
Total assets at fair value	$	23,277	$	16,535	$	6,742	$	-

2016:

 

	Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	1,167	$	1,167	$	-	$	-
Investments at fair value:
Equity securities		15,878		15,878		-		-
Corporate bonds and debentures		6,663		-		6,663		-
Total assets at fair value	$	23,708	$	17,045	$	6,663	$	-

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The summary of the 2016 and 2017 restricted share award activity presented below represents the maximum number of shares issued to employees that could be vested:

			Weighted Average
	Number of		Grant Date
Restricted time-based share awards	Shares		Fair Value
Non-vested at April 30, 2015		28,000	$	6.98
Granted during 2016		3,000		5.22
Vested during 2016		(12,000)		6.94
Non-vested at April 30, 2016		19,000		6.66
Granted during 2017		19,500		5.04
Vested during 2017		(13,000)		6.80
Forfeited during 2017		(1,000)		6.90
Non-vested at April 30, 2017		24,500	$	5.28