Consolidated Statements Of Cash Flows (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Operations:
Net income (loss)	$ (3,420)	$ 1,962	$ (5,941)	$ 2,761
Items not involving cash from operations:
Depreciation and amortization expense	3,976	4,620	12,373
Deferred income taxes	168	692	227	310
Share-based compensation expense	115	134	376	430
Gain on sale of property and equipment	4	41	(101)	(104)
Income on discontinued operations		(93)		(602)
Change in non-cash working capital components	(580)	(735)	(4,284)	(6,806)
Continuing operations	263	6,621	2,650	10,004
Discontinued operations	(64)	673	(590)	1,546
Net cash provided by (used in) operating activities	199	7,294	2,060	11,550
Investments:
Purchase of property and equipment	(757)	(767)	(7,365)	(4,748)
Proceeds on sale of property and equipment	108	475	437	1,301
Acquisition of business assets			(1,737)
Net cash provided by (used in) investing activities	(649)	(292)	(8,665)	(3,447)
Financing:
Change in revolving credit facility and bank overdraft	5,079	(2,579)	19,694	6,080
Repayment of long-term debt	(5,000)	(3,089)	(11,000)	(10,444)
Repayment of capital leases	(840)	(1,015)	(2,750)	(3,412)
Issue of common shares upon exercise of employee stock options	3	73	83	73
Net cash provided by (used in) financing activities	(758)	(6,610)	6,027	(7,703)
Effect of translation adjustment on cash	1,208	(392)	578	(400)
Increase in cash and cash equivalents
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period
Change in non-cash working capital components:
Accounts receivable	4,348	(5,228)	(17,524)	(15,731)
Inventory, deposits and prepaid expenses	(846)	(1,250)	(946)	(4)
Income and other taxes payable	272	1,534	637	(775)
Accounts payable and accrued liabilities	(4,354)	4,209	13,549	9,704
Change in non-cash working capital components	(580)	(735)	(4,284)	(6,806)
Supplemental cash flow information:
Capital lease additions	$ 262		$ 262