FAIR VALUE MEASUREMENTS (Details) - USD ($)	Jun. 30, 2015	Jun. 30, 2014
Assets:
Investment in marketable securities	$ 5,827,000	$ 11,420,000
Fair Value, Measurements, Recurring [Member]
Assets:
Other investments - warrants	104,000	207,000
Investment in marketable securities	5,502,000	11,420,000
Assets, Fair Value Disclosure	5,606,000	11,627,000
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Other investments - warrants	0	0
Investment in marketable securities	5,827,000	11,420,000
Assets, Fair Value Disclosure	5,827,000	11,420,000
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Other investments - warrants	0	0
Investment in marketable securities	0	0
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Other investments - warrants	104,000	207,000
Investment in marketable securities	0	0
Assets, Fair Value Disclosure	104,000	207,000
Basic Materials [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	2,761,000	5,081,000
Basic Materials [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	2,761,000	5,081,000
Basic Materials [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0	0
Basic Materials [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0	0
Industrial Goods [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	612,000
Industrial Goods [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	612,000
Industrial Goods [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0
Industrial Goods [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0
Technology [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	1,115,000	1,395,000
Technology [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	1,115,000	1,395,000
Technology [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0	0
Technology [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0	0
REITs and Real Estate Companies [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	517,000	1,001,000
REITs and Real Estate Companies [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	517,000	1,001,000
REITs and Real Estate Companies [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0	0
REITs and Real Estate Companies [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	$ 0	0
Financial Services [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities		820,000
Financial Services [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	$ 325,000	820,000
Financial Services [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities		0
Financial Services [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities		0
Other [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	$ 497,000	3,123,000
Other [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	497,000	3,123,000
Other [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	0	0
Other [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Investment in marketable securities	$ 0	$ 0