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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2023
Sep. 30, 2022
ASSETS    
Cash and cash equivalents $ 2,971 $ 12,736
Short-term marketable securities 3,549 6,397
Restricted cash 755 100
Accounts receivable, net of allowance for doubtful accounts of $181 10,353 6,744
Inventories, net 7,950 6,008
Prepaid expenses and other 1,683 3,577
Total current assets 27,261 35,562
Long-term marketable securities 392 781
Long-term restricted cash 96 823
Deferred tax assets, net 7,399 7,373
Property and equipment, net 1,666 1,757
Goodwill 10,348 10,118
Intangible assets, net 8,958 10,505
Operating lease right of use assets 4,094 4,541
Other assets 547 394
Total assets 60,761 71,854
Current liabilities:    
Accounts payable 3,324 2,334
Accrued liabilities 8,182 12,083
Operating lease liabilities, current portion 998 948
Total current liabilities 12,504 15,365
Other liabilities, noncurrent 116 907
Operating lease liabilities, noncurrent 4,551 5,189
Total liabilities 17,171 21,461
Stockholders' equity:    
Preferred stock, $0.00001 par value; 5,000,000 shares authorized; none issued and outstanding 0 0
Common stock, $0.00001 par value; 100,000,000 shares authorized; 37,181,071 and 36,611,240 shares issued and outstanding, respectively 0 0
Additional paid-in capital 110,013 108,551
Accumulated deficit (65,999) (57,366)
Accumulated other comprehensive loss (424) (792)
Total stockholders' equity 43,590 50,393
Total liabilities and stockholders' equity $ 60,761 $ 71,854