Accrued Liabilities

6 Months Ended

Jun. 30, 2019

Accrued Liabilities

Accrued Liabilities

5. Accrued Liabilities

Accrued liabilities consist of the following:

	June 30,		December 31,
	2019		2018
Employee bonuses	$	540	$	621
Accrued retention bonus		—		638
Accrued professional fees and other		263		84
Total accrued liabilities	$	803	$	1,343