Trade receivables (Tables)

12 Months Ended

Dec. 31, 2018

Trade receivables are analysed as follows:


	31/12/18			31/12/17			01/01/17
Domestic customers		20,247			22,399			22,332
European Customers		7,815			9,232			12,652
Chinese customers		7,233			618			374
North American customers		3,573			4,374			2,562
Other foreign customers		11,726			11,701			11,762

Total trade receivables		50,594			48,324			49,682
Allowance for doubtful accounts		(9,627	)		(10,775	)		(9,544	)

Total trade receivables		40,967			37,549			40,138

Summary of Trade Receivables and Revenue

As at December 31, 2018 and 2017 and for each year of the two-year period ended December 31, 2018, the Company had customers who exceeded 5% of trade receivables as follows:


Trade receivables	No. of customers	% of trade receivables
2018	2	21%
2017	3	18%

Summary of Provision for Doubtful Accounts

The following table provides the movements in the allowance for doubtful accounts.


	31/12/18			31/12/17
Balance, beginning of year		10,775			9,544
Effect of the adoption of IFRS 9 (see note 5)		37			—
Charges – bad debt expense		745			1,475
Reductions – write off of uncollectible amounts		(1,930	)		(244	)

Balance, end of year		9,627			10,775

Summary of Trade Receivables Denominated in Foreign Currencies

Trade receivables denominated in foreign currencies as at December 31, 2018, 2017 and January 1, 2017 totaled 26,490, 16,991 and 18,145, respectively. These receivables consist of the following:


	31/12/18		31/12/17		01/01/17
Chinese Yuan		7,233		618		374
Brasilian Reais		5,893		4,620		4,461
British pounds		2,823		3,215		5,298
U.S. dollars		2,183		3,736		5,694
Canadian dollars		2,124		2,232		466
Other currencies		6,234		2,570		1,852

Balance, end of year		26,490		16,991		18,145