CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 31,246	$ 32,686
Short-term investments	3,865
Trade accounts and notes receivable, net	10,531	13,778
Unbilled receivables	2,707
Inventories, net	15,313	16,933
Assets held for sale	1,732	587
Prepaid expenses and other current assets	2,179	953
Total current assets	67,573	64,937
Non-current notes receivable	3,077
Non-current inventories, net	24,580	16,930
Rental equipment, net	38,382	54,317
Property, plant and equipment, net	29,728	29,874
Operating right-of-use assets	1,309
Goodwill	4,337	4,337
Other intangible assets, net	7,465	8,331
Deferred cost of revenue and other assets	332	8,119
Total assets	176,783	186,845
Current liabilities:
Accounts payable trade	5,228	1,593
Contingent consideration	2,324
Operating lease liabilities	199
Deferred revenue and other current liabilities	8,454	8,753
Total current liabilities	16,205	10,346
Non-current contingent consideration	7,720	10,962
Non-current operating lease liabilities	1,135
Non-current deferred revenue and other liabilities	28	4,567
Total liabilities	25,088	25,875
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, 1,000,000 shares authorized, no shares issued and outstanding
Common Stock, $.01 par value, 20,000,000 shares authorized; 13,741,096 and 13,370,639 shares issued, respectively; and 13,465,908 and 13,670,639 shares outstanding, respectively	137	137
Additional paid-in capital	91,992	90,965
Retained earnings	78,332	86,566
Accumulated other comprehensive loss	(16,438)	(16,698)
Treasury stock, at cost, 275,188 shares at March 31, 2021	(2,328)
Total stockholders’ equity	151,695	160,970
Total liabilities and stockholders’ equity	$ 176,783	$ 186,845