Note 7. Goodwill

Goodwill represents the excess of the purchase price of assets acquired over the fair value of those assets and is tested for impairment annually, or more frequently if events or changes in circumstances dictate that the carrying value of goodwill may not be recoverable. Such test includes an assessment of qualitative and quantitative factors.

The Company had the following non-cash impairment charges to its goodwill for the years ended December 31, 2016 and 2015 (in thousands):

	Years Ended December 31,
	2016		2015
Impairment expense - goodwill	$	17,532	$	1,547

The Company did not have any non-cash impairment charges to its goodwill for the year ended December 31, 2014.

Accumulated impairments to Goodwill as of December 31, 2016 and 2015, were $19.1 million and $1.5 million, respectively.