Specification of temporary differences and deferred tax: | ||||||||||||
| December 31, | December 31, | December 31, | |||||||||
(Dollars in thousands) | 2017 | 2016 | 2015 | |||||||||
Property, plant and equipment | $ | (164 | ) | $ | (89 | ) | $ | (74 | ) | |||
Pensions | (425 | ) | (225 | ) | (196 | ) | ||||||
Total basis for deferred tax | (590 | ) | (314 | ) | (270 | ) | ||||||
Deferred tax liability 1) 2) | $ | (136 | ) | $ | (75 | ) | $ | (68 | ) |