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Unaudited Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 2,855 $ 4,064
Marketable securities 3,342 3,026
Receivables, net of allowance for doubtful accounts of $439 and $424, respectively 4,575 5,468
Inventories, net 10,350 11,441
Prepaid expenses and other assets 1,082 1,184
Total current assets 22,204 25,183
Long-term marketable securities 1,095 1,517
Long-term inventories, net 5,746 6,284
Property and equipment, net 966 1,044
Operating lease - right of use assets, net 2,332 2,459
Intangibles, net 15,411 14,009
Other assets 4,592 4,614
Total assets 52,346 55,110
Current liabilities:    
Accounts payable 2,475 2,871
Accrued liabilities 2,723 3,205
Deferred product revenue 207 173
Total current liabilities 5,405 6,249
Senior convertible notes 2,272 2,222
Operating lease liability 1,915 2,021
Other long-term liabilities 140 140
Total liabilities 9,732 10,632
Shareholders' equity:    
Common stock, par value $0.001, 50,000,000 shares authorized, 16,650,725 and 16,650,725 shares issued and outstanding 17 17
Additional paid-in capital 58,560 58,520
Accumulated other comprehensive loss (233) (176)
Accumulated deficit (15,730) (13,883)
Total shareholders' equity 42,614 44,478
Total liabilities and shareholders' equity $ 52,346 $ 55,110