XML 108 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial risk management (Schedule of Contractual Maturities of Financial Liabilities) (Details)
$ in Thousands
Dec. 31, 2017
USD ($)
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Trade and other payables $ 10,393
Per-payment facilities 15,000
Interest on credit facilities 1,601
Leases 1,438
Other long-term liabilities 564
Total contractual maturities of financial liabilities on an undiscounted basis 28,996
Less than 1 year [Member]  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Trade and other payables 10,393
Per-payment facilities 4,000
Interest on credit facilities 856
Leases 290
Other long-term liabilities
Total contractual maturities of financial liabilities on an undiscounted basis 15,539
2 - 3 Years [Member]  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Trade and other payables
Per-payment facilities 11,000
Interest on credit facilities 745
Leases 563
Other long-term liabilities 95
Total contractual maturities of financial liabilities on an undiscounted basis 12,403
4 - 5 Years [Member]  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Trade and other payables
Per-payment facilities
Interest on credit facilities
Leases 540
Other long-term liabilities
Total contractual maturities of financial liabilities on an undiscounted basis 540
Over 5 Years [Member]  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Trade and other payables
Per-payment facilities
Interest on credit facilities
Leases 45
Other long-term liabilities 469
Total contractual maturities of financial liabilities on an undiscounted basis $ 514