7. FAIR VALUE OF FINANCIAL INSTRUMENTS (Detail) - (Table 2) Fair Value Measurements (USD $)	Sep. 30, 2012	Dec. 31, 2011
Total other investments	$ 3,691,087	$ 3,745,327
Technology & Communication[Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Other Investments	518,000	478,000
Technology & Communication[Member] | Fair Value, Inputs, Level 2 [Member]
Other Investments	518,000	478,000
Technology & Communication[Member] | Total gain(losses) on Investment[Member]
Other Investments		(2,000)
Diversified businesses[Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Other Investments	1,409,000	1,445,000
Diversified businesses[Member] | Fair Value, Inputs, Level 2 [Member]
Other Investments	1,409,000	1,445,000
Real estate and related[Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Other Investments	1,464,000	1,523,000
Real estate and related[Member] | Fair Value, Inputs, Level 2 [Member]
Other Investments	511,000	542,000
Real estate and related[Member] | Fair Value, Inputs, Level 3 [Member]
Other Investments	953,000	981,000
Real estate and related[Member] | Total gain(losses) on Investment[Member]
Other Investments	(28,000)	(84,000)
Other investments and related income[Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Other Investments	300,000	300,000
Other investments and related income[Member] | Fair Value, Inputs, Level 3 [Member]
Other Investments	300,000	300,000
Estimate of Fair Value, Fair Value Disclosure [Member]
Total other investments	3,691,000	3,746,000
Goodwill (Bayshore)	5,629,000	5,629,000
Total assets	9,320,000	9,375,000
Fair Value, Inputs, Level 2 [Member]
Total other investments	2,438,000	2,465,000
Total assets	2,438,000	2,465,000
Fair Value, Inputs, Level 3 [Member]
Total other investments	1,253,000	1,281,000
Goodwill (Bayshore)	5,629,000	5,629,000
Total assets	6,882,000	6,910,000
Total gain(losses) on Investment[Member]
Total other investments	(28,000)	(86,000)
Total assets	$ (28,000)	$ (86,000)