Prepayments and Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Components of prepayments and other current assets

The components of prepayments and other current assets were as follows at the dates indicated (in thousands):

	December 31,
	2018		2017
Insurance premiums	$	677	$	425
Rents, licenses and other	880		839
Total	$	1,557	$	1,264