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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 54,092 $ 35,363
Marketable securities 17,682 23,090
Accounts receivable, less reserve for doubtful accounts of $31 and $41, respectively 11,300 7,760
Royalties and other receivables 82 240
Inventories, net 17,998 12,384
Deferred tax asset, net   5
Prepaid expenses and other current assets 2,098 2,104
Total current assets 103,252 80,946
Property, plant and equipment, net 13,801 14,526
Long-term marketable securities 1,633 3,550
Intangible assets, net 12,755 14,636
Goodwill 14,346 14,185
Restricted cash 450 450
Total assets 146,237 128,293
Current liabilities:    
Accounts payable 6,724 3,863
Accrued liabilities 12,057 6,819
Total current liabilities 18,781 10,682
Other long-term liabilities $ 4,708 $ 5,879
Commitments and contingencies (Note 6)
Stockholders' equity:    
Preferred stock, $.01 par value, 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $.01 par value, 80,000,000 shares authorized, 32,949,353 shares at December 31, 2015 and 32,774,374 shares at December 31, 2014 issued and outstanding $ 329 $ 328
Additional paid-in capital 202,527 198,064
Accumulated other comprehensive loss (8,566) (5,773)
Accumulated deficit (71,542) (80,887)
Total stockholders' equity 122,748 111,732
Total liabilities and stockholders' equity $ 146,237 $ 128,293