8.	INTANGIBLE ASSETS, NET

Intangible assets, net as of June 30, 2019 and December 31, 2018 consisted of the following (in thousands):

	June 30, 2019		December 31, 2018
Tradenames	$	30,756	$	30,256
Referral relationships, net of accumulated amortization of $10,121 and $$9,370, respectively		17,428		16,895
Non-compete agreements, net of accumulated amortization of $4,730 and $4,716, respectively		1,871		1,677
	$	50,055	$	48,828

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 six to sixteen years. Non-compete agreements are amortized over the respective term of the agreements which range from five to six years.

The following table details the amount of amortization expense recorded for intangible assets for the six months ended June 30, 2019 and 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Referral relationships	$	581	$	559	$	1,114	$	1,079
Non-compete agreements		169		91		338		288
	$	750	$	650	$	1,452	$	1,367

Based on the balance of referral relationships and non-compete agreements as of June 30, 2019, the expected amount to be amortized in 2019 and thereafter by year is as follows (in thousands):

Referral Relationships			Non-Compete Agreements
Years	Annual Amount		Years		Annual Amount
Ending December 31,			Ending December 31,
2019	$	2,232		2019	$	685
2020	$	2,235		2020	$	507
2021	$	2,235		2021	$	429
2022	$	2,187		2022	$	252
2023	$	2,080		2023	$	183
2024	$	1,914		2024	$	125
Thereafter	$	5,659	Thereafter		$	28