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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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