Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

Schedule II—Valuation and Qualifying Accounts



Column A	Column B	Column C				Column D			Column E
		Additions
	Balance at beginning of period	Charged to costs and expenses	Charged to other accounts			Deductions			Balance at end of period
Description	$	$	$			$			$

Year ended December 31, 2017
Allowance for doubtful accounts	420,000	181,000	33,000		⁽²⁾	(90,000	)	⁽¹⁾	544,000
Valuation allowance on deferred tax assets	70,241,000	2,215,000	(23,119,000	)	⁽³⁾	—			49,337,000

Year ended December 31, 2016
Allowance for doubtful accounts	291,000	109,000	19,000		⁽²⁾	1,000		⁽¹⁾	420,000
Valuation allowance on deferred tax assets	69,928,000	4,876,000	(4,563,000	)	⁽³⁾	—			70,241,000

Year ended December 31, 2015
Allowance for doubtful accounts	425,000	92,000	(61,000	)	⁽²⁾	(165,000	)	⁽¹⁾	291,000
Valuation allowance on deferred tax assets	91,462,000	16,320,000	(37,854,000	)	⁽³⁾	—			69,928,000

⁽¹⁾ Bad debts written off, net of recoveries.
⁽²⁾ Foreign currency translation adjustments.
⁽³⁾ This amount was charged to income tax expense, but is fully offset by the income tax benefit generated when recording the corresponding deferred tax asset.