CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss	$ (19,005)	$ (37,584)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Deferred income tax benefit	(37)	(25)
Rental equipment depreciation	7,475	9,858
Property, plant and equipment depreciation	3,105	3,930
Impairment of long-lived assets	488
Accretion of discounts on short-term investments	31	45
Stock-based compensation expense	1,833	4,289
Bad debt expense (recovery)	3,081	(402)
Inventory obsolescence expense	4,001	12,111
Gross profit from sale of used rental equipment	(4,966)	(2,650)
Gain on disposal of property, plant and equipment	(25)
Realized loss on short-term investments	1	2
Effects of changes in operating assets and liabilities:
Trade accounts receivable	(3,932)	8,871
Income tax receivable	262	12,847
Inventories	(5,702)	1,208
Prepaid expenses and other current assets	(1,186)	459
Prepaid income taxes	41	1,156
Accounts payable trade	1,437	(77)
Accrued expenses and other	505	(2,033)
Deferred revenue	512	119
Income tax payable	8	(117)
Net cash provided by (used in) operating activities	(12,073)	12,007
Cash flows from investing activities:
Purchase of property, plant and equipment	(1,005)	(588)
Proceeds from sale of property and equipment	200
Investment in rental equipment	(2,511)	(299)
Proceeds from the sale of used rental equipment	4,333	4,424
Purchases of short-term investments	(11,162)	(16,042)
Proceeds from the sale of short-term investments	20,163	6,991
Payments for damages related to insurance claim	(1,970)
Proceeds from insurance claim	900
Increase in insurance claim receivable	849
Net cash provided by (used in) investing activities	9,797	(5,514)
Cash flows from financing activities:
Proceeds from the exercise of stock options	19	50
Net cash provided by financing activities	19	50
Effect of exchange rate changes on cash	(285)	272
Increase (decrease) in cash and cash equivalents	(2,542)	6,815
Cash and cash equivalents, beginning of fiscal year	15,092	10,262
Cash and cash equivalents, end of fiscal period	$ 12,550	$ 17,077

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-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2A
-Subparagraph (a)
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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.3(a))
-URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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