CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (14,816)	$ (9,021)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income tax benefit	(12)	(3)
Rental equipment depreciation	10,500	11,332
Property, plant and equipment depreciation	3,112	2,956
Amortization	1,365	1,299
Accretion of discounts on short-term investments	89	45
Stock-based compensation expense	1,342	1,510
Bad debt expense (recovery)	116	(32)
Inventory obsolescence expense	2,310	1,702
Change in estimated fair value of contingent consideration	(5,042)	(1,713)
Gross profit from sale of used rental equipment	(10,801)	(6,546)
(Gain) loss on disposal of property, plant and equipment	(9)	6
Realized loss (gain) on sale of investments, net	22	(1,996)
Effects of changes in operating assets and liabilities:
Trade accounts and notes receivables	1,455	(4,621)
Unbilled receivables	1,051	(1,561)
Inventories	(1,705)	(4,920)
Other assets	(250)	6,756
Accounts payable trade	(2,223)	1,372
Other liabilities	215	(4,080)
Net cash used in operating activities	(13,281)	(7,515)
Cash flows from investing activities:
Purchase of property, plant and equipment	(913)	(2,451)
Proceeds from the sale of property, plant and equipment	9	3
Investment in rental equipment	(4,121)	(1,528)
Proceeds from the sale of used rental equipment	5,929	9,994
Purchases of short-term investments	(450)	(10,844)
Proceeds from the sale of short-term investments	8,224	1,100
Proceeds from sale of investment in debt security		2,069
Net cash provided by (used in) investing activities	8,678	(1,657)
Cash flows from financing activities:
Payments on contingent consideration	(807)
Debt issuance costs	(211)
Purchase of treasury stock	(695)	(3,588)
Net cash used in financing activities	(1,713)	(3,588)
Effect of exchange rate changes on cash	(282)	144
Decrease in cash, cash equivalents and restricted cash	(6,598)	(12,616)
Cash and cash equivalents, beginning of fiscal year	14,066	32,686
Cash, cash equivalents and restricted cash, end of fiscal period	7,468	20,070
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for income taxes	168	284
Issuance of notes receivable in connection with sale of used rental equipment	11,745
Inventory transferred to rental equipment	1,194	$ 3,777
Inventory transferred to property, plant and equipment	$ 172