NOTES PAYABLE Notes Payable (Narrative) (Details) (USD $)	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
Prudential Insurance Company of America, Prudential Retirement Insurance and Annuity Company, Forethought Life Insurance Company, Physicians Mutual Insurance Company and BCBSM, Inc
Debt Instrument
Face Amount	$ 18,500,000
Interest Rate, Stated Percentage	3.96%
Maturity Date	Aug. 01, 2020
Prudential Financial
Debt Instrument
Face Amount	25,000,000
Interest Rate, Stated Percentage	6.55%
Maturity Date	Apr. 15, 2013
Minimum Overdue Financial Obligation Considered As Default	5,000,000
Fixed Charge Ratio Covenant	1.50
Additional Interest Charge If Covenants Not Met	0.25%
The Prudential Insurance Company of America and Prudential Retirement Insurance and Annuity Company
Debt Instrument
Face Amount	15,000,000
Interest Rate, Stated Percentage	5.89%
Maturity Date	Oct. 15, 2015
Minimum Overdue Financial Obligation Considered As Default	5,000,000
Line of Credit, BMO Harris
Debt Instrument
Initiation Date	12/21/2011
Maximum Borrowing Capacity	15,000,000
Expiration Date	12/31/2014
Variable Interest Rate, Prime Based	3.25%	3.30%
Variable Interest Rate, LIBOR Based	2.32%	0.80%
Maximum Amount Outstanding During Period	0
Minimum Overdue Financial Obligation Considered As Default	1,000,000
Consolidated Net Worth Covenant Base	$ 56,760,000
Consolidated Net Worth Covenant - Additional % Cumulative Qrtly Earnings	25.00%
Consolidated Net Worth Covenant - Cumulative Qrtly Earnings Commencement Date	Jan. 31, 2006