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Description of Business and Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Jul. 31, 2011 | Dec. 31, 2013 segment subsidiary | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 Autos And Trucks [Member] | Dec. 31, 2013 Minimum [Member] | Dec. 31, 2013 Minimum [Member] Laundry And Linen Equipment Installations [Member] | Dec. 31, 2013 Minimum [Member] Housekeeping, And Office Furniture And Equipment [Member] | Jan. 31, 2013 Maximum [Member] | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2013 Maximum [Member] Laundry And Linen Equipment Installations [Member] | Dec. 31, 2013 Maximum [Member] Housekeeping, And Office Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Service agreement term |  | 1 year |  |  |  |  |  |  |  |  |  |
Days to notify cancellation of service |  |  |  |  |  | 30 days |  |  |  | 90 days |  |
Initial period of service term |  | 90 days |  |  |  |  |  |  |  |  |  |
Number of reportable segments |  | 2 |  |  |  |  |  |  |  |  |  |
Number of subsidiaries |  | 2 |  |  |  |  |  |  |  |  |  |
Notes receivable |  | $ 2,892 | $ 1,639 |  |  |  |  |  |  |  |  |
Discounted notes receivable |  | 2,880 | 1,620 |  |  |  |  |  |  |  |  |
Marketable securities |  | 11,445 |  |  |  |  |  |  |  |  |  |
Unrealized gains from marketable securities |  | 49 |  |  |  |  |  |  |  |  |  |
Amortization period of inventories and supplies |  | 24 months |  |  |  |  |  |  |  |  |  |
Useful life |  |  |  |  | 3 years |  | 3 years | 3 years |  |  | 7 years | 7 years
Depreciation expense |  | $ 3,373 | $ 2,947 | $ 2,416 |  |  |  |  |  |  |  |
Property and equipment payment terms |  |  |  |  |  | 24 months |  |  |  | 60 months |  |
Percentage of reduction of Medicare payments to nursing centers | 11.10% |  |  |  |  |  |  |  |  |  |  |
Percentage of reduction of Medicare payments to plans and providers |  |  |  |  |  |  |  |  | 2.00% |  |  |
Percentage of revenue from a major client |  |  |  |  |  | 3.00% |  |  |  | 5.00% |  |

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