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Fair Value of Financial Instruments (Tables)
 3 Months Ended
Mar. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
The estimated fair value of the Company’s assets and liabilities as of March 31, 2018 and December 31, 2017 were as follows (in thousands):
 
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Carrying 
Value
 
March 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cash, cash equivalents, restricted cash
 
$
3,101
 
$
-
 
$
-
 
$
3,101
 
$
3,101
 
Total
 
$
3,101
 
$
-
 
$
-
 
$
3,101
 
$
3,101
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Debt obligations
 
$
-
 
$
-
 
$
5,569
 
$
5,569
 
$
5,577
 
Total
 
$
-
 
$
-
 
$
5,569
 
$
5,569
 
$
5,577
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cash, cash equivalents, restricted cash
 
$
2,502
 
$
-
 
$
-
 
$
2,502
 
$
2,502
 
Total
 
$
2,502
 
$
-
 
$
-
 
$
2,502
 
$
2,502
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Debt obligations
 
$
-
 
$
-
 
$
6,082
 
$
6,082
 
$
6,057
 
Total
 
$
-
 
$
-
 
$
6,082
 
$
6,082
 
$
6,057