CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net loss	$ (11,042)	$ (5,445)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income tax expense (benefit)	4,926	(702)
Depreciation expense	4,810	3,933
Accretion of discounts on short-term-investments	44	57
Stock-based compensation expense	1,185	1,220
Bad debt expense (recovery)	(889)	697
Inventory obsolescence expense	2,294	777
Gross (profit) loss from sale of used rental equipment	(4)	5
Realized loss on short-term investments	1
Excess tax expense from stock-based compensation	(1,313)	(1,051)
Effects of changes in operating assets and liabilities:
Trade accounts and notes receivable	6,708	10,099
Income tax receivable	(7,883)	(3,526)
Inventories	2,078	(3,953)
Prepaid expenses and other current assets	(717)	855
Prepaid income taxes	398	452
Accounts payable trade	(1,975)	794
Accrued expenses and other	(901)	(6,766)
Deferred revenue	(99)	(163)
Income taxes payable	19	257
Net cash used in operating activities	(2,360)	(2,460)
Cash flows from investing activities:
Purchase of property, plant and equipment	(679)	(1,147)
Investment in rental equipment	(135)	(29)
Proceeds from the sale of used rental equipment	35	244
Purchases of short-term investments	(4,902)	(1,550)
Proceeds from the sale of short-term investments	3,370	1,715
Net cash used in investing activities	(2,311)	(767)
Effect of exchange rate changes on cash	(218)	160
Decrease in cash and cash equivalents	(4,889)	(3,067)
Cash and cash equivalents, beginning of fiscal year	22,314	33,357
Cash and cash equivalents, end of fiscal period	$ 17,425	$ 30,290