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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Current assets    
Cash and cash equivalents $ 3,791 $ 5,893
Short-term investments 5,993 9,267
Accounts receivable, net 2,106 2,436
Inventories 4,521 3,824
Tax credits and receivables 1,117 1,099
Prepaid expenses and other 1,333 1,159
Total current assets 18,861 23,678
Long-term investments 2,399 2,928
Property and equipment, net 2,042 2,349
Intangible assets, net 7,852 8,355
Goodwill 9,946 9,946
Right-of-use lease asset, net 770 617
Other 78 78
Total assets 41,948 47,951
Current liabilities    
Accounts payable 1,941 1,937
Accrued expenses and other 2,373 2,903
Deferred revenue 361 375
Short-term lease liability 422 379
Total current liabilities 5,097 5,594
Long-term lease liability 411 288
Total liabilities 5,508 5,882
Commitments and contingencies (Note 5)
Stockholders’ equity    
Preferred stock, $0.01 par value; 20,000 shares authorized; none issued and outstanding
Common stock, $0.001 par value; 120,000 shares authorized; 21,588 shares and 21,579 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively 22 22
Additional paid-in capital 160,408 159,246
Accumulated other comprehensive loss (37)  
Accumulated deficit (123,953) (117,199)
Total stockholders’ equity 36,440 42,069
Total liabilities and stockholders’ equity $ 41,948 $ 47,951