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Cemetery Perpetual Care Trust Investments (Cost and fair market values associated with the trust investments held in perpetual care trust funds) (Details) - Perpetual Care Trust Invesments [Member] - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cemetary perpetual care trust investments	$ 47,716,000		$ 46,889,000
Fair market value as a percentage of cost	100.00%		99.30%
Impairment charge, other than temporary decline in fair value of investments	$ 0	$ 400,000
Trust Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	47,187,000		$ 46,708,000
Unrealized Gains	2,908,000		2,764,000
Unrealized Losses	(2,927,000)		(3,072,000)
Fair Market Value	47,168,000		46,400,000
Accrued Investment Income [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	548,000		489,000
Fair Market Value	548,000		489,000
Fair Value, Inputs, Level 1 [Member] | Cash and Money Market Accounts [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	5,407,000		6,522,000
Unrealized Gains	0		0
Unrealized Losses	0		0
Fair Market Value	5,407,000		6,522,000
Fair Value, Inputs, Level 1 [Member] | Common Stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	10,657,000		8,259,000
Unrealized Gains	1,693,000		1,382,000
Unrealized Losses	(1,411,000)		(1,146,000)
Fair Market Value	10,939,000		8,495,000
Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	367,000		365,000
Unrealized Gains	5,000		13,000
Unrealized Losses	(24,000)		(3,000)
Fair Market Value	348,000		375,000
Fair Value, Inputs, Level 2 [Member] | Foreign Government Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	4,423,000		5,100,000
Unrealized Gains	156,000		99,000
Unrealized Losses	(273,000)		(435,000)
Fair Market Value	4,306,000		4,764,000
Fair Value, Inputs, Level 2 [Member] | Corporate Debt [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	13,400,000		13,715,000
Unrealized Gains	743,000		966,000
Unrealized Losses	(696,000)		(821,000)
Fair Market Value	13,447,000		13,860,000
Fair Value, Inputs, Level 2 [Member] | Preferred Stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	11,421,000		11,323,000
Unrealized Gains	21,000		5,000
Unrealized Losses	(515,000)		(664,000)
Fair Market Value	10,927,000		10,664,000
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	650,000		569,000
Unrealized Gains	205,000		223,000
Unrealized Losses	(8,000)		(3,000)
Fair Market Value	847,000		789,000
Fair Value, Inputs, Level 2 [Member] | Fixed Income [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	862,000		855,000
Unrealized Gains	85,000		76,000
Unrealized Losses	0		0
Fair Market Value	$ 947,000		$ 931,000

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