Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (146,000)	$ (19,212,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Deferred income tax expense (benefit)	16,000	(18,000)
Rental equipment depreciation	13,713,000	10,178,000
Property, plant and equipment depreciation	3,965,000	4,040,000
Amortization of intangible assets	1,661,000	194,000
Impairment of long-lived assets		573,000
Accretion of discounts (amortization of premiums) on short-term investments	(9,000)	27,000
Stock-based compensation expense	2,329,000	2,318,000
Bad debt expense	436,000	1,009,000
Inventory obsolescence expense	4,614,000	4,353,000
Change in estimated fair value of contingent consideration	(2,115,000)
Gross profit from sale of used rental equipment	(652,000)	(6,809,000)
Gain on disposal of property	(7,047,000)
Gain on disposal of equipment	(100,000)	(27,000)
Realized loss on short-term investments	66,000	11,000
Effects of changes in operating assets and liabilities:
Trade accounts and other receivables	(9,159,000)	(5,090,000)
Income tax receivable		270,000
Inventories	(1,865,000)	(7,824,000)
Prepaid expenses and other current assets	325,000	93,000
Prepaid income taxes	18,000	55,000
Accounts payable trade	(44,000)	1,333,000
Accrued expenses and other	660,000	1,011,000
Deferred revenue	(1,016,000)	3,063,000
Income taxes payable	(21,000)	51,000
Net cash provided by (used in) operating activities	5,629,000	(10,401,000)
Cash flows from investing activities:
Purchase of property, plant and equipment	(1,936,000)	(1,721,000)
Investment in rental equipment	(34,070,000)	(6,513,000)
Proceeds from the sale of property	8,265,000
Proceeds from the sale of equipment	142,000	202,000
Proceeds from the sale of used rental equipment	4,856,000	9,918,000
Purchases of short-term investments		(17,922,000)
Proceeds from the sale of short-term investments	25,606,000	28,463,000
Business acquisition, net of acquired cash	(1,819,000)	(4,352,000)
Payments for damages related to insurance claim	(650,000)	(2,353,000)
Proceeds from insurance claim	1,166,000	1,749,000
Increase in insurance claim receivable		306,000
Net cash provided by investing activities	1,560,000	7,777,000
Cash flows from financing activities:
Proceeds from exercise of stock options and other	215,000	63,000
Net cash provided by financing activities	215,000	63,000
Effect of exchange rate changes on cash	(413,000)	(597,000)
Increase (decrease) in cash and cash equivalents	6,991,000	(3,158,000)
Cash and cash equivalents, beginning of fiscal year	11,934,000	15,092,000
Cash and cash equivalents, end of fiscal year	$ 18,925,000	$ 11,934,000