Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Measurements

Schedule of financial assets and liabilities at fair value

	Level 1		Level 2		Level 3		Total
	(in thousands)
At June 30, 2018
Assets:
Cash and cash equivalents	$	2,510	$	—	$	—	$	2,510
Lease receivables		435		—		—		435
Short-term investments		343		—		—		343
	$	3,288	$	—	$	—	$	3,288
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