Preneed Trust Investments (Preneed cemetery trust investment security transactions) (Details) - USD ($)	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fair value measurements, transfers between Level 1 and Level 2	$ 0
Preneed Cemetery Trust Investments [Member] \| Interest Income and Other, Net [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investment income	425,000	$ 589,000
Realized gain, net	853,000	820,000
Realized losses	(607,000)	(383,000)
Expenses and taxes	(51,000)	(545,000)
Increase (decrease) in deferred preneed cemetery receipts held in trust	$ (620,000)	$ (481,000)

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 225
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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-Name Accounting Standards Codification
-Topic 225
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-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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