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Organization and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Estimated Useful Life of Assets Used to Compute Depreciation Using the Straight-line Method | Depreciation expense has been calculated using the following estimated useful lives:
Buildings and other improvements |  | 10-20 years
Leasehold improvements |  | 15 years
Office furniture and equipment |  | 7 years
Assets under capital lease |  | 4-20 years
Computer equipment and software |  | 3-5 years
Vehicles |  | 3-6 years

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