Interim Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income	$ 8,659	$ 7,359
Adjustment to reconcile net income to net cash used in operating activities:
Provision for doubtful accounts	69	126
Depreciation	4,579	2,815
Amortization of intangibles	772	781
Amortization of debt issuance costs	53	53
Stock-based compensation expense	285	176
Excess tax benefits from stock-based payment arrangements	(38)	(10)
Provision for deferred income tax benefit	292	(1,166)
Gain on sale of property, plant and equipment	(165)	(14)
Changes in operating assets and liabilities, net of amounts acquired:
Accounts receivable	(16,383)	(22,550)
Inventories	(4,337)	(8,531)
Rental equipment	1,916	(3,148)
Prepaid expenses and other assets	(1,241)	(1,895)
Trade accounts payable and accrued liabilities	655	9,911
Income taxes payable	(47)	3,414
Other long-term liabilities	(154)	(229)
Net cash used in operating activities	(5,085)	(12,908)
Investing Activities
Acquisitions, net of cash acquired	(188)	(3,465)
Purchase of property, plant and equipment	(1,761)	(1,886)
Proceeds from sale of property, plant and equipment	354	21
Net cash used in investing activities	(1,595)	(5,330)
Financing Activities
Borrowings on bank revolving credit facility	44,000	33,000
Repayments on bank revolving credit facility	(15,000)	(15,000)
Principal payments on long-term debt and capital leases	(6)	274
Dividends paid	(1,025)	(903)
Proceeds from sale of common stock	317	275
Excess tax benefits from stock-based payment arrangements	38	10
Net cash provided by financing activities	28,324	17,656
Effect of exchange rate changes on cash and cash equivalents	1,088	(2,290)
Net change in cash and cash equivalents	22,732	(2,872)
Cash and cash equivalents at beginning of the period	26,922	39,533
Cash and cash equivalents at end of the period	49,654	36,661
Cash paid during the period for:
Interest	1,419	1,554
Income taxes	$ 5,735	$ 2,897