Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Measurements

Schedule of financial assets and liabilities at fair value by respective level of the fair value hierarchy

	Level 1		Level 2		Level 3		Total
	(in thousands)
At December 31, 2018
Assets:
Cash and cash equivalents	$	3,293	$	—	$	—	$	3,293
Lease receivables		481		—		—		481
Short-term investments		330		—		—		330
	$	4,104	$	—	$	—	$	4,104
At December 31, 2017
Assets:
Cash and cash equivalents	$	3,250	$	—	$	—	$	3,250
Lease receivables		314		—		—		314
Short-term investments		238		—		—		238
	$	3,802	$	—	$	—	$	3,802