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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 30,140 $ 34,640
Trade accounts receivable less allowances of $101 and $155, respectively 6,034 10,110
Inventories, net 11,536 7,732
Prepaid and other current assets 1,011 740
Total current assets 48,721 53,222
Property and equipment, net 2,590 2,429
Other assets 63 51
Total assets 51,374 55,702
Current liabilities:    
Accounts payable 5,929 7,295
Accrued liabilities 512 355
Accrued payroll and related benefits 645 1,243
Accrued sales and bonus incentives 218 1,005
Accrued warranty reserve 327 314
Deferred revenue 67 93
Total current liabilities 7,698 10,305
Other liabilities 74 77
Total liabilities 7,772 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: 11,652,739 at March 31, 2016 and 11,648,978 at December 31, 2015 1 1
Additional paid-in capital 125,639 125,369
Accumulated other comprehensive income 1 0
Accumulated deficit (82,039) (80,050)
Total stockholders' equity 43,602 45,320
Total liabilities and stockholders' equity $ 51,374 $ 55,702