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Intangible Assets, net | 12 Months Ended
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Dec. 31, 2018
Intangible Assets, net [Abstract] |
Intangible Assets, net | 8. Intangible Assets, net Intangible assets, net as of December 31, 2018 and 2017 consisted of the following (in thousands):
|  | December 31, 2018 |  |  | December 31, 2017 |
Tradenames |  | $ | 30,256 |  |  | $ | 29,673 |
Referral relationships, net of accumulated amortization of $9,370 and $7,209, respectively |  |  | 16,895 |  |  |  | 16,811 |
Non-compete agreements, net of accumulated amortization of $4,716 and $4,100, respectively |  |  | 1,677 |  |  |  | 2,470 |
|  | $ | 48,828 |  |  | $ | 48,954 |
Tradenames, referral relationships and non-compete agreements are related to the businesses acquired. The value assigned to tradenames has an indefinite life and is tested at least annually for impairment using the relief from royalty method in conjunction with the Company’s annual goodwill impairment test. The value assigned to referral relationships is being amortized over their respective estimated useful lives which range from 6 to 16 years. Non-compete agreements are amortized over the respective term of the agreements which range from 5 to 6 years. The following table details the amount of amortization expense recorded for intangible assets for the years ended December 31, 2018, 2017 and 2016 (in thousands):
|  | Year Ended |  |  | Year Ended |  |  | Year Ended |
|  | December 31, 2018 |  |  | December 31, 2017 |  |  | December 31, 2016 |
Tradenames |  | $ | - |  |  | $ | - |  |  | $ | 330 |
Referral relationships |  |  | 2,161 |  |  |  | 1,934 |  |  |  | 1,512 |
Non-compete agreements |  |  | 616 |  |  |  | 720 |  |  |  | 525 |
|  | $ | 2,777 |  |  | $ | 2,654 |  |  | $ | 2,367 |
For one acquisition, the value assigned to tradename was being amortized over the term of the six year agreement in which the Company had acquired the right to use the specific tradename. In 2016, the remaining value of this tradename was charged to earnings and included in amortization expense in the above table as the Company decided to combine two acquired operations in Georgia and the tradename under this six year agreement will no longer be used. The remaining balances of the referral relationships and non-compete agreements is expected to be amortized as follows (in thousands):
Referral Relationships |  |  | Non-Compete Agreements |
Years Ending December 31, |  | Annual Amount |  |  | Years Ending December 31, |  |  | Annual Amount |
2019 |  | $ | 2,133 |  |  |  | 2019 |  |  | $ | 632 |
2020 |  | $ | 2,133 |  |  |  | 2020 |  |  | $ | 418 |
2021 |  | $ | 2,133 |  |  |  | 2021 |  |  | $ | 340 |
2022 |  | $ | 2,084 |  |  |  | 2022 |  |  | $ | 163 |
2023 |  | $ | 1,977 |  |  |  | 2023 |  |  | $ | 94 |
2024 |  | $ | 1,791 |  |  |  | 2024 |  |  | $ | 30 |
Thereafter |  | $ | 4,644 |  |  |  |  |  |  |  |  |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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- References No definition available. + Details
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