Goodwill and Intangible Assets

Goodwill

The following table presents the changes in goodwill during fiscal 2019 and fiscal 2018 (in thousands):



	2019		2018
Balance at beginning of year	$	54,510	$	54,510
Acquisition of Yucatan (Note 2)	22,232		—
Balance at end of year	$	76,742	$	54,510

As of May 26, 2019, the Curation Foods reporting unit had $62.8 million of goodwill and the Lifecore reporting unit had $13.9 million of goodwill.

Intangible Assets

As of May 26, 2019 and May 27, 2018, the Company's intangible assets consisted of the following (in thousands):



		May 26, 2019				May 27, 2018
	Amortization Period (years)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships
Eat Smart (Curation Foods)	13	$	7,500	$	4,087	$	7,500	$	3,510
O (Curation Foods)	11	700		143		700		83
Yucatan Foods (Curation Foods)	12	11,000		550		—		—
Lifecore	12	3,700		2,801		3,700		2,493
Total customer relationships		$	22,900	$	7,581	$	11,900	$	6,086

Trademarks and tradenames
Eat Smart (Curation Foods)		$	9,100	$	872	$	11,100	$	872
O (Curation Foods)		1,600		—		1,600		—
Yucatan Foods (Curation Foods)		15,900		—		—		—
Lifecore		4,200		—		4,200		—
Total trademarks and tradenames		$	30,800	$	872	$	16,900	$	872

Total intangible assets		$	53,700	8,453		$	28,800	$	6,958

Amortization expense related to finite-lived intangible assets was $1.5 million, $1.0 million, and $0.9 million in fiscal 2019, 2018, and 2017, respectively. The amortization expense for the next five fiscal years is estimated to be $1.9 million per year.