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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 13,412 $ 7,440
Marketable securities 7,161 6,994
Receivables, net of allowance for doubtful accounts of $54 and $58, as of December 31, 2015 and 2014 respectively 8,692 9,916
Inventories 13,447 12,766
Distributor channel inventories 1,628 1,698
Prepaid expenses and other assets 1,806 2,143
Total current assets 46,146 40,957
Long-term marketable securities 19,204 19,162
Long-term inventories, net 2,018 876
Property and equipment, net 1,589 2,039
Intangibles, net 6,638 7,896
Goodwill 12,724 12,724
Deferred income taxes 5,093 5,089
Other assets 117 117
Total assets 93,529 88,860
Current liabilities:    
Accounts payable 2,815 3,057
Accrued liabilities 2,243 2,694
Deferred product revenue 4,549 5,004
Total current liabilities 9,607 10,755
Deferred rent 150 248
Other long-term liabilities 1,203 1,841
Total liabilities 10,960 12,844
Shareholders' equity:    
Common stock, par value $0.001, 50,000,000 shares authorized, 9,183,957 and 9,097,827 shares issued and outstanding as of December 31, 2015 and 2014, respectively 9 9
Additional paid-in capital 46,291 44,939
Accumulated other comprehensive (loss) (166) (8)
Retained earnings 36,435 31,076
Total shareholders' equity 82,569 76,016
Total liabilities and shareholders' equity $ 93,529 $ 88,860