LINE OF CREDIT (Details) (USD $)	12 Months Ended
	Apr. 30, 2014 Property	Apr. 30, 2013
Line of Credit Facility [Line Items]
Line of credit, minimum outstanding principal balance	$ 12,500,000
Debt instrument, description of variable rate basis	Journal Prime Rate
Debt instrument, basis spread on variable rate (in hundredths)	1.25%
Debt instrument, covenant description	The line of credit may be prepaid at par at any time. The facility includes covenants and restrictions requiring the Company to achieve on a calendar quarter basis a debt service coverage ratio on borrowing base collateral of 1.25x in the aggregate and 1.00x on individual assets in the collateral pool
Minimum deposit	6,000,000
Non-interest bearing account	1,500,000
Number of properties securing line of credit	14
Line of credit facility, collateral cost	124,400,000
Credit Facility [Abstract]
Amount available	72,000,000
Amount outstanding	$ 22,500,000	$ 10,000,000
Interest rate (in hundredths)	4.75%
Maturity date	Dec. 01, 2016
Weighted average interest rate (in hundredths)	4.86%
First International Bank & Trust [Member]
Line of Credit Facility [Line Items]
Number of securing line of credit	1
Interest Rate Cap [Member]
Line of Credit Facility [Line Items]
Debt instrument, interest rate (in hundredths)	8.65%
Interest Rate Floor [Member]
Line of Credit Facility [Line Items]
Debt instrument, interest rate (in hundredths)	4.75%