Prepaid Expenses and Other Current Assets

12 Months Ended

Dec. 31, 2018

Prepaid Expenses and Other Current Assets [Abstract]

Prepaid Expenses and Other Current Assets

7.  Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:

(in thousands)	December 31,
	2018		2017
Inventory	$	139	$	755
Income tax receivable		310		418
Prepaid expenses		556		549
Other current assets		795		1,073
Total	$	1,800	$	2,795

Inventory composed of raw material, is being purchased to support the construction of three major nuclear simulation projects related to a significant contract that was executed during the first quarter of 2016. Inventory is recorded at the lower of cost or net realizable value in accordance with ASC 330, Inventory. Cost is determined using specific identification.

Other current assets primarily include value-added tax receivables and cash deposited in a Swedish tax account. Prepaid expenses primarily include prepayment for insurance.