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5. GOODWILL AND OTHER INTANGIBLE ASSETS (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Other intangible assets, gross | $ 57,500 |  |
Accumulated amortization | 25,700 |  |
Amortization expense | 2,600 | $ 2,600 | $ 3,000
Goodwill deductible for tax purposes | 110,100 |  |
Noncompete Agreements [Member] |  |  |
Other intangible assets, gross | 6,400 |  |
Accumulated amortization | 5,800 |  |
Trade Names [Member] |  |  |
Other intangible assets, gross | 10,200 |  |
Accumulated amortization | 1,500 |  |
Dispositions of intangibles | $ 750 |  |
Management Service Contracts [Member] |  |  |
Amortization period | 25 years |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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