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Prepayments and Other Current Assets
3 Months Ended
Mar. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepayments and Other Current Assets Prepayments and Other Current Assets
The components of prepayments and other current assets were as follows at the dates indicated (in thousands):
March 31,December 31,
20192018
Insurance premiums$598 $677 
Rents, licenses and other1,011 880 
Total$1,609 $1,557