Cemetery Perpetual Care Trust Investments (Unrealized losses on perpetual care trust investments) (Details) - Perpetual Care Trust Invesments [Member] - USD ($)	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Gain (Loss) on Investments [Line Items]
Impairment charge, other than temporary decline in fair value of investments	$ 0	$ 400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	10,288,000		$ 10,067,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(689,000)		(476,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	13,334,000		13,733,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2,238,000)		(2,596,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	23,622,000		23,800,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(2,927,000)		(3,072,000)
Municipal Bonds [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	306,000		137,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(24,000)		(3,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	306,000		137,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(24,000)		(3,000)
Foreign Debt [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	583,000		1,619,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(13,000)		(120,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,763,000		1,961,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(260,000)		(315,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,346,000		3,580,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(273,000)		(435,000)
Corporate Debt Securities [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	5,047,000		4,679,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(335,000)		(152,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,151,000		1,439,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(361,000)		(669,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	6,198,000		6,118,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(696,000)		(821,000)
Common Stock [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	2,901,000		1,563,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(268,000)		(121,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,904,000		2,004,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,143,000)		(1,025,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	4,805,000		3,567,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,411,000)		(1,146,000)
Preferred Stock [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,287,000		2,038,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(41,000)		(77,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	8,516,000		8,329,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(474,000)		(587,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	9,803,000		10,367,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(515,000)		(664,000)
Mortgage Backed Securities [Member]
Gain (Loss) on Investments [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	164,000		31,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(8,000)		(3,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	164,000		31,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (8,000)		$ (3,000)

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position.

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-Publisher FASB
-Name Accounting Standards Codification
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