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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 16,629 $ 34,640
Trade accounts receivable, less allowances of $236 and $155, respectively 5,640 10,110
Inventories, net 9,469 7,732
Prepaid and other current assets 882 740
Total current assets 32,620 53,222
Property and equipment, net 2,325 2,429
Other assets 33 51
Total assets 34,978 55,702
Current liabilities:    
Accounts payable 3,257 7,295
Accrued liabilities 1,676 2,917
Deferred revenue 0 93
Total current liabilities 4,933 10,305
Other liabilities 107 77
Total liabilities 5,040 10,382
STOCKHOLDERS’ EQUITY    
Preferred stock, par value $0.0001 per share: Authorized: 2,000,000 shares in 2016 and 2015 Issued and outstanding: no shares in 2016 and 2015 0 0
Common stock, par value $0.0001 per share: Authorized: 30,000,000 shares in 2016 and 2015 Issued and outstanding: 11,710,549 at December 31, 2016 and 11.648,978 at December 31, 2015 1 1
Additional paid-in capital 126,875 125,369
Accumulated other comprehensive loss (1) 0
Accumulated deficit (96,937) (80,050)
Total stockholders' equity 29,938 45,320
Total liabilities and stockholders' equity $ 34,978 $ 55,702