Accrued Expenses

3 Months Ended

Mar. 31, 2017

Accrued Expenses [Abstract]

Accrued Expenses

6.  Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	March 31,		December 31,
	2017		2016
Professional fees	$	155	$	285
Compensation expense		223		261
Other		82		205
	$	460	$	751