Prepaid Expenses

12 Months Ended

Dec. 31, 2018

Prepaid Expenses

Prepaid Expenses

4. Prepaid Expenses

Prepaid expenses consist of the following:                                                                                                                 

	December 31,
	2018		2017
Prepaid clinical trial expense	$	—	$	205
Prepaid insurance		484		388
Other		123		169
Total prepaid expenses	$	607	$	762