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CONSOLIDATED BALANCE SHEETS - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 178,593,000 $ 44,909,000
Marketable securities 32,965,000 0
Accounts and other receivables, net (including due from a related party of $414 and $104 at December 31, 2021 and 2020, respectively) 18,354,000 9,453,000
Prepaid expenses and other current assets 4,217,000 3,419,000
Inventory 3,616,000 5,337,000
Total current assets 237,745,000 63,118,000
Property and equipment, net 476,000 630,000
Operating lease right-of-use assets 2,252,000 2,610,000
Intangible assets, net 22,749,000 25,209,000
Restricted cash 150,000 150,000
Total assets 263,372,000 91,717,000
Current liabilities:    
Accounts payable 7,385,000 4,811,000
Accrued expenses 14,422,000 8,445,000
Deferred revenue 1,069,000 945,000
Other current liabilities 782,000 687,000
Total current liabilities 23,658,000 14,888,000
Long-term debt 36,562,000 37,977,000
Deferred revenue - noncurrent 14,560,000 15,616,000
Operating lease liabilities - noncurrent 1,860,000 2,330,000
Other long-term liabilities 2,352,000 2,365,000
Total liabilities 78,992,000 73,176,000
Contingencies (Note 16)
Stockholders’ equity:    
Preferred stock, $.001 par value, 5,000,000 shares authorized, no shares issued and outstanding
Common stock, $.001 par value, 300,000,000 shares authorized at December 31, 2021 and 2020, respectively; 33,905,826 and 18,139,981 shares issued and outstanding at December 31, 2021 and 2020, respectively 34,000 18,000
Additional paid-in capital 752,602,000 528,362,000
Accumulated deficit (569,097,000) (510,680,000)
Accumulated other comprehensive income 841,000 841,000
Total stockholders’ equity 184,380,000 18,541,000
Total liabilities and stockholders’ equity $ 263,372,000 $ 91,717,000