Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 18,907	$ 18,803
Short-term investments	15,051	14,921
Trade accounts and note receivable, net	41,969	21,373
Inventories, net	21,839	18,430
Prepaid expenses and other current assets	2,227	2,251
Total current assets	99,993	75,778
Non-current inventories, net	20,032	24,888
Rental equipment, net	15,242	21,587
Property, plant and equipment, net	24,083	24,048
Non-current trade accounts receivable	1,510	0
Operating right-of-use assets	653	714
Goodwill	736	736
Other intangible assets, net	4,696	4,805
Other non-current assets	438	486
Total assets	167,383	153,042
Current liabilities:
Accounts payable trade	6,190	6,659
Operating lease liabilities	261	257
Other current liabilities	14,161	12,882
Total current liabilities	20,612	19,798
Non-current operating lease liabilities	439	512
Deferred tax liabilities, net	25	16
Total liabilities	21,076	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; 14,159,082 and 14,030,481 shares issued, respectively; and 13,317,090 and 13,188,489 shares outstanding, respectively	142	140
Additional paid-in capital	96,444	96,040
Retained earnings	74,539	61,860
Accumulated other comprehensive loss	(17,318)	(17,824)
Treasury stock, at cost, 841,992 shares	(7,500)	(7,500)
Total stockholders’ equity	146,307	132,716
Total liabilities and stockholders’ equity	$ 167,383	$ 153,042