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Secured Credit Facility and Other Debt (Tables)
 3 Months Ended
Mar. 31, 2018
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
Debt consists of the following (in thousands):
 
 
March 31,
2018
 
December 31,
2017
Loans
 
$
80,321

 
$
85,000

Notes and deferred payments to sellers, Tealstone acquisition
 
12,676

 
12,393

Notes payable for transportation and construction equipment and other
 
1,460

 
1,557

Total debt
 
94,457

 
98,950

 
 
 
 
 
Less - Current maturities of long-term debt
 
(1,057
)
 
(3,978
)
Less - Unamortized deferred loan costs
 
(8,294
)
 
(8,812
)
Total long-term debt
 
$
85,106

 
$
86,160