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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Cash flows from operating activities: |  |  |
Net loss | $ (56,791,000) | $ (45,970,000) | $ (32,641,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |
Deferred income tax expense (benefit) | (25,000) | 4,209,000 | (943,000)
Rental equipment depreciation | 12,530,000 | 14,523,000 | 13,948,000
Property, plant and equipment depreciation | 5,236,000 | 5,391,000 | 5,599,000
Impairment of long-lived assets | 5,331,000 | 1,814,000 |
Goodwill impairment |  |  | 1,843,000
Accretion of discounts on short-term investments | 60,000 | 110,000 | 225,000
Stock-based compensation expense | 5,732,000 | 5,220,000 | 4,539,000
Bad debt expense (recovery) | (380,000) | 763,000 | 2,147,000
Inventory obsolescence expense | 21,472,000 | 11,212,000 | 3,887,000
Gross profit from sale of used rental equipment | (9,054,000) | (404,000) | (3,208,000)
Loss on disposal of property, plant and equipment |  | 8,000 | 26,000
Realized loss on short-term investments | 3,000 | 5,000 | 7,000
Excess tax expense from stock-based compensation |  | (1,411,000) | (1,083,000)
Effects of changes in operating assets and liabilities: |  |  |
Trade accounts and financing receivables | 7,743,000 | (3,428,000) | 7,088,000
Income tax receivable | 13,041,000 | 4,078,000 | (14,799,000)
Inventories | 2,962,000 | 5,193,000 | 9,661,000
Prepaid expenses and other current assets | 680,000 | (523,000) | 997,000
Prepaid income taxes | 2,171,000 | 1,475,000 | 1,753,000
Accounts payable trade | 477,000 | (1,942,000) | (834,000)
Accrued expenses and other | (1,269,000) | (2,149,000) | (6,004,000)
Deferred revenue | 295,000 | 11,000 | (3,567,000)
Income taxes payable | (123,000) | 120,000 | (10,000)
Net cash provided by (used in) operating activities | 10,091,000 | (1,695,000) | (11,369,000)
Cash flows from investing activities: |  |  |
Purchase of property, plant and equipment | (1,177,000) | (1,867,000) | (2,189,000)
Investment in rental equipment | (455,000) | (502,000) | (3,973,000)
Proceeds from the sale of used rental equipment | 4,884,000 | 1,584,000 | 4,278,000
Purchases of short-term investments | (19,242,000) | (25,791,000) | (6,306,000)
Proceeds from the sale of short-term investments | 10,532,000 | 16,368,000 | 7,902,000
Net cash used in investing activities | (5,458,000) | (10,208,000) | (288,000)
Cash flows from financing activities: |  |  |
Proceeds from exercise of stock options and other | 50,000 |  |
Net cash provided by financing activities | 50,000 |  |
Effect of exchange rate changes on cash | 147,000 | (149,000) | 614,000
Increase (decrease) in cash and cash equivalents | 4,830,000 | (12,052,000) | (11,043,000)
Cash and cash equivalents, beginning of fiscal year | 10,262,000 | 22,314,000 | 33,357,000
Cash and cash equivalents, end of fiscal year | $ 15,092,000 | $ 10,262,000 | $ 22,314,000

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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.3(a)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 325 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6485959&loc=d3e22529-158502 + Details
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