FAIR VALUE DISCLOSURES - Fair Value Measurements on Recurring Basis (Detail) (USD $)	Sep. 30, 2012	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Investments	$ 14,398,719	$ 14,040,450
Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	5,388,000
Total available-for-sale securities	9,011,000
Total Investments	14,399,000
Common stock [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	261,000
Total available-for-sale securities	1,272,000
Mutual funds [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	4,041,000
Total available-for-sale securities	2,705,000
Offshore fund [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	1,086,000
Total available-for-sale securities	4,866,000
Venture capital investments [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	168,000
Quoted Prices (Level 1) [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	4,268,000
Total available-for-sale securities	3,977,000
Total Investments	8,245,000
Quoted Prices (Level 1) [Member] | Common stock [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	227,000
Total available-for-sale securities	1,272,000
Quoted Prices (Level 1) [Member] | Mutual funds [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	4,041,000
Total available-for-sale securities	2,705,000
Significant Other Inputs (Level 2) [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	1,120,000
Total available-for-sale securities	4,866,000
Total Investments	5,986,000
Significant Other Inputs (Level 2) [Member] | Common stock [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	34,000
Significant Other Inputs (Level 2) [Member] | Offshore fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	1,086,100
Total available-for-sale securities	4,866,000
Significant Other Inputs (Level 2) [Member] | Offshore fund [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total trading securities	1,086,000
Total available-for-sale securities	4,866,000
Significant unobservable inputs (Level 3) [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	168,000
Total Investments	168,000
Significant unobservable inputs (Level 3) [Member] | Venture capital investments [Member] | Recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	$ 168,000