Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Measurements

Schedule of financial assets and liabilities at fair value

	Level 1		Level 2		Level 3		Total
	(in thousands)
At September 30, 2018
Assets:
Cash and cash equivalents	$	4,996	$	—	$	—	$	4,996
Lease receivables		481		—		—		481
Short-term investments		289		—		—		289
	$	5,766	$	—	$	—	$	5,766
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