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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2021
Sep. 30, 2020
ASSETS    
Cash and cash equivalents $ 18,455 $ 23,319
Short-term marketable securities 5,474 4,265
Restricted cash 282 282
Accounts receivable, net 5,445 5,442
Inventories, net 6,451 5,949
Prepaid expenses and other 1,082 860
Total current assets 37,189 40,117
Long-term marketable securities 2,450 3,805
Long-term restricted cash 1,190 395
Deferred tax assets, net 10,817 11,095
Property and equipment, net 1,901 1,930
Goodwill 8,380 2,472
Intangible assets, net 3,570 943
Operating lease right of use asset 5,216 5,285
Other assets 195 125
Total assets 70,908 66,167
LIABILITIES AND STOCKHOLDERS' EQUITY    
Accounts payable 2,555 1,370
Accrued liabilities 6,994 7,880
Notes payable, current portion 300 300
Operating lease liabilities, current portion 859 771
Total current liabilities 10,708 10,321
Notes payable, less current portion 18
Other liabilities, noncurrent 884 293
Operating lease liabilities, noncurrent 6,172 6,395
Total liabilities 17,764 17,027
Stockholders' equity:    
Preferred stock, $0.00001 par value; 5,000,000 shares authorized; none issued and outstanding
Common stock, $0.00001 par value; 100,000,000 shares authorized; 33,849,566 and 33,561,544 shares issued and outstanding, respectively
Additional paid-in capital 95,218 91,248
Accumulated deficit (42,215) (41,858)
Accumulated other comprehensive income (loss) 141 (250)
Total stockholders' equity 53,144 49,140
Total liabilities and stockholders' equity $ 70,908 $ 66,167