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Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Company's Intangible Assets

Details of the Company’s intangible assets are as follows:

    June 30, 2019   December 31, 2018
    Gross Carrying   Accumulated   Gross Carrying   Accumulated
(In thousands)       Amount       Amortization       Amount       Amortization
Assets eligible for amortization:                        
Customer lists   $ 4,288   $ (3,256)   $ 4,288   $ (3,071)
Patents     72     (18)     72     (16)
Non-compete agreements     332     (332)     332     (326)
Software     234     (234)     234     (234)
Other     500     (241)     500     (225)
Unamortized intangible assets:                        
Goodwill1     12,796     (227)     12,796     (227)
Total intangible assets   $ 18,222   $ (4,308)   $ 18,222   $ (4,099)
1 Amortization through December 31, 2001 prior to adoption of FASB ASC 350.