Leases and Related Parties Leases and Related Parties (Tables)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

summarized future minimum payments under all leases:

Year Ended December 31,	Operating Leases
(Thousands of dollars)
2016	$	1,165
2017	641
2018	645
2019	437
2020	438
Thereafter	2,640
	$	5,966