5. Other Investments (Tables)

12 Months Ended

Dec. 31, 2012

Investment Holdings, Schedule of Investments [Table Text Block]

	Carrying values as of December 31,
Investment Focus	2012		2011
Venture capital funds – technology and communications	$	514,000	$	478,000
Venture capital funds – diversified businesses		1,337,000		1,444,000
Real estate and related		1,453,000		1,523,000
Other		300,000		300,000
Totals	$	3,604,000	$	3,745,000

Investment Income [Table Text Block]

	2012		2011
Income from investment in 49% owned affiliate (a)	$	57,000	$	41,000
Real estate and related (b)		223,000		—
Venture capital funds – diversified businesses (c)		121,000		27,000
Other		—		1,000
Total net income from other investments	$	401,000	$	69,000

Schedule of Fair Value of Separate Accounts by Major Category of Investment [Table Text Block]

	2012			2011
Real estate and related	$	(28,000	)	$	(84,000	)
Other		—			(3,000	)
Total other than temporary impairment loss from other investments	$	(28,000	)	$	(87,000	)

Schedule of Unrealized Loss on Investments [Table Text Block]

	As of December 31, 2012
	Less than 12 Months					Greater than 12 Months					Total
Investment Description	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Partnerships owning investments in technology related industries	$	11,000	$	(10,000	)	$	374,000	$	(69,000	)	$	384,000	$	(79,000	)
Partnerships owning diversified businesses		—		—			241,000		(5,000	)		241,000		(5,000	)
Partnerships owning real estate and related investments		—		—			231,000		(49,000	)		231,000		(49,000	)
Total	$	11,000	$	(10,000	)	$	846,000	$	(123,000	)	$	856,000	$	(133,000	)

	As of December 31, 2011
	Less than 12 Months					Greater than 12 Months					Total
Investment Description	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Partnerships owning investments in technology related industries	$	327,000	$	(20,000	)	$	47,000	$	(39,000	)	$	374,000	$	(59,000	)
Partnerships owning diversified businesses		—		—			228,000		(61,000	)		228,000		(61,000	)
Partnerships owning real estate and related investments		—		—			256,000		(56,000	)		256,000		(56,000	)
Total	$	327,000	$	(20,000	)	$	531,000	$	(156,000	)	$	858,000	$	(176,000	)