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Goodwill and Intangibles (Notes)
12 Months Ended
Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangibles
 Goodwill and Intangibles
A rollforward of the Company's goodwill by segment is as follows:
 
Kopin
 
Industrial
 
Total
Balance, December 31, 2016
$
844,023

 
$

 
$
844,023

March 2017 acquisition of NVIS, Inc.

 
1,488,650

 
1,488,650

Impairment of goodwill from NVIS, Inc.

 
(600,086
)
 
(600,086
)
Change due to exchange rate fluctuations
47,660

 

 
47,660

Balance, December 30, 2017
$
891,683

 
$
888,564

 
$
1,780,247


The Company performs impairment tests of goodwill at its reporting unit level. The Company conducts its annual goodwill impairment test on the last day of each fiscal year unless factors indicate that an impairment may have occurred. At December 30, 2017, the Company performed an impairment analysis of goodwill based on a comparison of the discounted cash flows to the recorded carrying value of the reporting units, and determined that the discounted cash flows were less than the carrying value of the NVIS reporting unit. The input methods for goodwill and intangibles are analyzed for impairment on a nonrecurring basis using fair value measurements with unobservable inputs, which is Level 3 in the fair value hierarchy. As a result, the Company recorded an impairment of $0.6 million related to NVIS's goodwill at December 30, 2017.
The Company recognized $1.6 million, $0.0 million and $0.6 million in amortization expense for the fiscal years ended 2017, 2016 and 2015, respectively, related to intangible assets. At December 30, 2017, the Company has a carrying value of $2.5 million, accumulated amortization of $1.6 million and a net book value of $0.9 million related to intangibles. The intangibles have a remaining life of 1 year.