Fair Value Measurements (Tables)

3 Months Ended

Jul. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Assets Measured at Fair Value on Recurring Basis

The following table sets forth our assets and liabilities measured at fair value on a recurring basis and a non-recurring basis by level within the fair value hierarchy. As required by US GAAP, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.

	Assets Measured at Fair Value on a Recurring Basis as of July 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Municipal Bonds	$	—	$	5,549,000	$	—	$	5,549,000
Corporate Bonds		26,000		—		—		26,000
REITs		—		83,000		—		83,000
Equity Securities		20,721,000		—		—		20,721,000
Money Markets and CDs		1,278,000		—		—		1,278,000
Total fair value of assets measured on a recurring basis	$	22,025,000	$	5,632,000	$	—	$	27,657,000

	Assets Measured at Fair Value on a Recurring Basis as of April 30, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Municipal Bonds	$	—	$	5,483,000	$	—	$	5,483,000
Corporate Bonds		26,000		—		—		26,000
REITs		—		84,000		—		84,000
Equity Securities		20,465,000		—		—		20,465,000
Money Markets and CDs		1,233,000		—		—		1,233,000
Total fair value of assets measured on a recurring basis	$	21,724,000	$	5,567,000	$	—	$	27,291,000