CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operations:
Net income (loss)	$ (16,973)	$ (4,163)	$ 50,699	$ (9,979)
Items not involving cash from operations:
Depreciation and amortization	3,696	3,766	7,597	7,525
Deferred income taxes	44	(1)	(178)	(44)
Gain on sale of property and equipment	(673)	(132)	(963)	(50)
Share-based compensation expense	92	100	187	227
Income from discontinued operations (note 3)		(1,560)	(85,301)	(2,931)
Change in non-cash working capital components	2,280	5,452	(4,739)	(873)
Continuing operations	11,534	3,462	(32,698)	(6,125)
Discontinued operations		237	475	3,616
Net cash used in operating activities	11,534	3,699	(32,223)	(2,509)
Investments:
Proceeds from sale of business, net of cash divested	363		94,102
Purchases of property and equipment	(1,695)	(5,500)	(2,486)	(7,082)
Proceeds on sale of property and equipment	1,451	1,026	1,795	1,567
Continuing operations	119	(4,474)	93,411	(5,515)
Discontinued operations		(261)	22	(461)
Net cash provided by (used) in investing activities	119	(4,735)	93,433	(5,976)
Financing:
Change in revolving credit facility and bank overdraft		1,440	(31,750)	10,980
Proceeds from long-term debt			14,058
Repayment of long-term debt	(628)	(489)	(1,072)	(733)
Repayment of capital leases	(409)	(846)	(811)	(1,787)
Financing costs			(514)
Issue of common shares upon exercise of employee stock options			170	151
Net cash provided by (used in) financing activities	(1,037)	105	(19,919)	8,611
Effect of foreign exchange translation on cash	(889)	65	(289)	(19)
Increase (decrease) in cash and cash equivalents	(13,341)	(866)	41,002	107
Cash and cash equivalents, beginning of period	54,576	2,177	233	1,204
Cash and cash equivalents, end of period	41,235	1,311	41,235	1,311
Change in non-cash working capital components:
Accounts receivable	2,508	368	(8,002)	(8,137)
Inventory, deposits and prepaid expenses	992	1,724	1,160	454
Income taxes recoverable/payable	4	1,659	(993)	570
Accounts payable and accrued liabilities	(1,224)	1,701	3,096	6,240
Change in non-cash working capital components	2,280	5,452	(4,739)	(873)
Supplemental disclosure of non-cash transactions:
Capital lease additions		$ 4,099		$ 5,745