5. Other investments measured at fair value on a non-recurring basis (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Other investments measured at fair value on a non-recurring basis
Company received distributions from investments in diversified businesses and real estate approximately	$ 211,000
Company made contributions in this type of investment totaling.	447,000
The amount of the Company's unfunded commitments related to the aforementioned investments is approximately in millions	1,800,000
The Level 3 real estate and related investments include one investment in a commercial building located near the Company's offices	1,045,000
Carrying value of the Level 3 real estate and related investments	$ 724,000