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Investments (Tables)
3 Months Ended
Mar. 31, 2018
Investments [Abstract]  
Schedule of Variable Interest Entities
The carrying amounts with the Company’s maximum exposure to loss at March 31, 2018 and December 31, 2017, respectively, are as follows:
 
 
March 31,
2018
 
December 31,
2017
L B Pipe JV investment
 
$
3,875

 
$
3,875

Revolving line of credit
 
1,235

 
1,235

Net investment in direct financing lease
 
681

 
735

 
 
$
5,791

 
$
5,845

Schedule of Direct Financing Future Minimum Lease Payments for Capital Leases
The following is a schedule of the direct financing minimum lease payments for the remainder of 2018 and the year 2019:
 
Minimum Lease Payments
2018
$
114

2019
567

 
$
681