Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Current assets:
Cash and cash equivalents	$ 18,803	$ 16,109
Short-term investments	14,921	894
Trade accounts and notes receivable, net	21,373	20,886
Inventories, net	18,430	19,995
Prepaid expenses and other current assets	2,251	2,077
Total current assets	75,778	59,961
Non-current inventories, net	24,888	12,526
Rental equipment, net	21,587	28,199
Property, plant and equipment, net	24,048	26,598
Operating right-of-use assets	714	957
Goodwill	736	736
Other intangible assets, net	4,805	5,573
Other non-current assets	486	506
Total assets	153,042	135,056
Current liabilities:
Accounts payable trade	6,659	5,595
Contingent consideration	0	175
Operating lease liabilities	257	241
Other current liabilities	12,882	6,616
Total current liabilities	19,798	12,627
Non-current operating lease liabilities	512	769
Deferred tax liabilities, net	16	13
Total liabilities	20,326	13,409
Commitments and contingencies (Note 17)
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, 14,030,481 and 13,863,233 shares issued, respectively; and 13,188,489 and 13,021,241 shares outstanding, respectively	140	139
Additional paid-in capital	96,040	94,667
Retained earnings	61,860	49,654
Accumulated other comprehensive loss	(17,824)	(15,313)
Treasury stock, at cost, 841,992 shares	(7,500)	(7,500)
Total stockholders’ equity	132,716	121,647
Total liabilities and stockholders’ equity	$ 153,042	$ 135,056