Prepaid Expenses and Other Current Assets

6 Months Ended

Jun. 30, 2019

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Prepaid Expenses and Other Current Assets

4. Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following:

	June 30, 2019		December 31, 2018
Tax incentive refund	$	1,549	$	1,325
Prepaid research and development costs		4,090		981
Prepaid insurance		1,626		316
Interest income receivable		163		220
Prepaid rent		83		81
Other current assets		329		795
	$	7,840	$	3,718