Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operations:
Net loss	$ (5,816)	$ (224)
Items not involving cash from operations:
Depreciation and amortization	4,075	4,357
Deferred income taxes	(25)	(5)
Share-based compensation expense	127	142
Loss (gain) on sale of property and equipment	76	(38)
Change in non-cash working capital components	(4,614)	(5,974)
Continuing operations	(6,177)	(1,742)
Discontinued operations	(31)	816
Net cash provided by (used in) operating activities	(6,208)	(926)
Investments:
Purchases of property and equipment	(1,782)	(2,340)
Proceeds on sale of property and equipment	541	64
Acquisition of business assets		(1,737)
Net cash provided by (used in) investing activities	(1,241)	(4,013)
Financing:
Change in revolving credit facility and bank overdraft	9,540	9,177
Repayment of long-term debt	(244)	(3,000)
Repayment of capital leases	(941)	(971)
Issue of common shares upon exercise of employee stock options	151	80
Net cash provided by (used in) financing activities	8,506	5,286
Effect of foreign exchange translation on cash	(84)	(347)
Increase in cash and cash equivalents	973
Cash and cash equivalents, beginning of period	1,204
Cash and cash equivalents, end of period	2,177
Change in non-cash working capital components:
Accounts receivable	(7,879)	(16,815)
Inventory, deposits and prepaid expenses	(1,448)	(1,891)
Income and other taxes payable	(1,097)	(294)
Accounts payable and accrued liabilities	5,810	13,026
Change in non-cash working capital components	(4,614)	(5,974)
Supplemental disclosure of non-cash transactions:
Capital lease additions	$ 1,646