CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net loss	$ (33,661)	$ (19,191)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income tax expense (benefit)	4,403	(3,458)
Depreciation expense	15,206	14,777
Impairment of rental assets	998
Accretion of discounts on short-term-investments	89	174
Stock-based compensation expense	3,934	3,434
Bad debt expense (recovery)	(74)	1,130
Inventory obsolescence expense	6,414	2,566
Write-down of inventories	617
Gross profit from sale of used rental equipment	(229)	(1,658)
Gain on disposal of property, plant and equipment		(2)
Realized loss on short-term investments	4
Excess tax expense from stock-based compensation	(1,390)	(1,065)
Effects of changes in operating assets and liabilities:
Trade accounts and notes receivable	72	7,314
Income tax receivable	6,858	(6,829)
Inventories	3,066	5,274
Prepaid expenses and other current assets	(4,435)	2,832
Prepaid income taxes	1,097	1,333
Accounts payable trade	(1,844)	(1,827)
Accrued expenses and other	(2,254)	(8,127)
Deferred revenue	(74)	(3,412)
Income tax payable	109	(19)
Net cash used in operating activities	(1,094)	(6,754)
Cash flows from investing activities:
Purchase of property, plant and equipment	(1,206)	(2,046)
Investment in rental equipment	(504)	(3,784)
Proceeds from the sale of used rental equipment	1,280	4,547
Purchases of short-term investments	(20,800)	(4,281)
Proceeds from the sale of short-term investments	11,679	4,415
Net cash used in investing activities	(9,551)	(1,149)
Effect of exchange rate changes on cash	(143)	152
Decrease in cash and cash equivalents	(10,788)	(7,751)
Cash and cash equivalents, beginning of fiscal year	22,314	33,357
Cash and cash equivalents, end of fiscal period	$ 11,526	$ 25,606