Assets measured at fair value on a nonrecurring basis are summarized below (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Total for the year
Technology and Communication	$ 473,000
Other investments by investment focus:
Technology and Communication	473,000
Diversified businesses	1,093,000
Real estate and related	1,667,000
Other	625,000
Assets total	3,858,000
Other investments by investment focus:
Technology and Communication		472,000
Diversified businesses		1,098,000
Real estate and related		1,409,000
Other		325,000
Assets total		3,304,000
Quoted Prices in Active Markets for Identical Assets (Level 1)
Technology and Communication	0
Other investments by investment focus:
Technology and Communication	0
Diversified businesses	0
Real estate and related	0
Other	0
Assets total	0
Other investments by investment focus:
Technology and Communication		0
Diversified businesses		0
Real estate and related		0
Other		0
Assets total		0
Significant Other Observable Inputs (Level 2)
Technology and Communication	473,000
Other investments by investment focus:
Technology and Communication	473,000
Diversified businesses	1,093,000
Real estate and related	720,000
Other	0
Assets total	2,286,000
Other investments by investment focus:
Technology and Communication		472,000
Diversified businesses		1,098,000
Real estate and related		462,000
Other		0
Assets total		2,032,000
Significant Unobservable Inputs (Level 3)
Technology and Communication	0
Other investments by investment focus:
Technology and Communication	0
Diversified businesses	0
Real estate and related	947,000
Other	625,000
Assets total	1,572,000
Other investments by investment focus:
Technology and Communication		0
Diversified businesses		0
Real estate and related		947,000
Other		325,000
Assets total		1,272,000
Total for the three months
Technology and Communication	0
Other investments by investment focus:
Technology and Communication	0
Diversified businesses	0
Real estate and related	0
Other	0
Assets total	0
Other investments by investment focus:
Technology and Communication		50,000
Diversified businesses		0
Real estate and related		0
Other		0
Assets total		$ 50,000