Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2017

Investments, All Other Investments [Abstract]

Schedule of Fair Value On a Recurring and Non-recurring Basis

The following table presents information about assets that were recorded at fair value on a recurring and non-recurring basis as of March 31, 2017 and December 31, 2016 and indicate the fair value hierarchy:

	March 31, 2017
(in thousands)	Level 1	Level 2	Level 3	Total
Current Assets
Marketable securities	$             999	$                 -	$             -	$            999
Notes receivable – current	-	1,500	-	1,500
Total current assets recorded at fair value	$             999	$         1,500	$             -	$         2,499
Non-Current Assets
Restricted cash	3,941	-	-	3,941
Notes receivable - non-current	-	2,176	-	2,176
Total non-current assets recorded at fair value	$          3,941	$         2,176	$             -	$         6,117
	December 31, 2016
	Level 1	Level 2	Level 3	Total
Non-Current Assets
Restricted cash	$          3,964	$                 -	$             -	$         3,964
Total non-current assets recorded at fair value	$          3,964	$                -	$             -	$         3,964