Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 12,327	$ 18,803
Short-term investments	30,189	14,921
Trade accounts and note receivable, net	16,164	21,373
Inventories, net	24,557	18,430
Prepaid expenses and other current assets	2,771	2,251
Total current assets	86,008	75,778
Non-current inventories, net	17,362	24,888
Rental equipment, net	16,907	21,587
Property, plant and equipment, net	24,037	24,048
Non-current trade accounts receivable	1,510	0
Operating right-of-use assets	527	714
Goodwill	736	736
Other intangible assets, net	4,505	4,805
Other non-current assets	361	486
Total assets	151,953	153,042
Current liabilities:
Accounts payable trade	4,230	6,659
Operating lease liabilities	215	257
Other current liabilities	9,693	12,882
Total current liabilities	14,138	19,798
Non-current operating lease liabilities	368	512
Deferred tax liabilities, net	26	16
Total liabilities	14,532	20,326
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock, 1,000,000 shares authorized, no shares issued and outstanding	0	0
Common Stock, $.01 par value, 20,000,000 shares authorized; 14,204,082 and 14,030,481 shares issued, respectively; and 13,070,615 and 13,188,489 shares outstanding, respectively	142	140
Additional paid-in capital	97,067	96,040
Retained earnings	68,142	61,860
Accumulated other comprehensive loss	(17,431)	(17,824)
Treasury stock, at cost, 1,133,467 and 841,992 shares, respectively	(10,499)	(7,500)
Total stockholders’ equity	137,421	132,716
Total liabilities and stockholders’ equity	$ 151,953	$ 153,042