Investments (Details) Available for Sale Investments (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Schedule of Available-for-sale Securities
Cost, Total	$ 46,347,000		$ 46,347,000		$ 41,277,000
Gross Unrealized Gains	7,899,000		7,899,000		2,999,000
Gross Unrealized Losses	(900,000)		(900,000)		(1,170,000)
Fixed maturities, Carrying Value	11,706,000		11,706,000		15,205,000
Marketable equity securities, Carrying Value	41,640,000		41,640,000		27,901,000
Total available-for-sale investments	53,346,000		53,346,000		43,106,000
Available-for-sale Securities, Continuous Unrealized Loss Position
Less than 12 months, Fair Value	1,886,000		1,886,000		6,576,000
Less than 12 months, Gross Unrealized Loss	234,000		234,000		355,000
Greater than 12 months, Fair Value	7,767,000		7,767,000		5,575,000
Greater than 12 months, Gross Unrealized Loss	666,000		666,000		815,000
Marketable Equity Securities
Schedule of Available-for-sale Securities
Marketable equity securities, Cost	34,962,000		34,962,000		26,575,000
Gross Unrealized Gains	7,518,000		7,518,000		2,440,000
Gross Unrealized Losses	(840,000)		(840,000)		(1,114,000)
Marketable equity securities, Carrying Value	41,640,000		41,640,000		27,901,000
Available-for-sale Securities, Continuous Unrealized Loss Position
Less than 12 months, Fair Value	1,886,000		1,886,000		6,510,000
Less than 12 months, Gross Unrealized Loss	234,000		234,000		354,000
Greater than 12 months, Fair Value	5,580,000		5,580,000		2,757,000
Greater than 12 months, Gross Unrealized Loss	606,000		606,000		760,000
Other-than-temporary impairment charges on marketable equity securities	0	14,000	917,000	14,000
Fixed Maturities Total
Schedule of Available-for-sale Securities
Fixed maturities, Cost					14,702,000
Gross Unrealized Gains					559,000
Gross Unrealized Losses					(56,000)
Fixed maturities, Carrying Value					15,205,000
US Treasury Securities
Schedule of Available-for-sale Securities
Fixed maturities, Cost					831,000
Gross Unrealized Gains
Gross Unrealized Losses
Fixed maturities, Carrying Value					831,000
Corporate Bonds
Schedule of Available-for-sale Securities
Fixed maturities, Cost	11,385,000		11,385,000		13,871,000
Gross Unrealized Gains	381,000		381,000		559,000
Gross Unrealized Losses	(60,000)		(60,000)		(56,000)
Fixed maturities, Carrying Value	11,706,000		11,706,000		14,374,000
Available-for-sale Securities, Continuous Unrealized Loss Position
Less than 12 months, Fair Value					66,000
Less than 12 months, Gross Unrealized Loss					1,000
Greater than 12 months, Fair Value	2,187,000		2,187,000		2,818,000
Greater than 12 months, Gross Unrealized Loss	60,000		60,000		55,000
Segment, Discontinued Operations
Schedule of Available-for-sale Securities
Marketable equity securities, Cost					9,000,000
Cost, Total	14,700,000		14,700,000		20,800,000
Fixed maturities, Carrying Value					21,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position
Marketable Securities, Equity Securities					13,800,000
Segment, Discontinued Operations | Marketable Equity Securities
Schedule of Available-for-sale Securities
Gross Unrealized Gains					4,900,000
Gross Unrealized Losses					(96,000)
Segment, Discontinued Operations | Fixed Maturities Total
Schedule of Available-for-sale Securities
Gross Unrealized Gains	147,000		147,000		629,000
Gross Unrealized Losses					(68,000)
Fixed maturities, Carrying Value	$ 14,800,000		$ 14,800,000