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Supplementary Financial Information to Item 8.
 12 Months Ended
Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]  
Supplementary Financial Information to Item 8.
SUPPLEMENTARY FINANCIAL INFORMATION TO ITEM 8.
 
The following table sets forth our selected unaudited financial information for the four quarters in the years ended December 31, 2020 and 2019, respectively. This information has been prepared on the same basis as the audited financial statements and, in the opinion of management, contains all adjustments necessary for a fair presentation thereof.
 
QUARTERLY FINANCIAL DATA (UNAUDITED)
(amounts in thousands, except per share amounts) 
2020Fourth
Quarter		Third
Quarter		Second
Quarter		First
Quarter
Net sales$3,746 $5,964 $3,335 $3,783 
Gross profit1,434 1,376 1,343 1,032 
Net income (loss)65 (1,165)(4,340)(541)
    
Net income (loss) per common share attributable to common stockholders - basic1:
$0.01 $(0.35)$(1.36)$(0.18)
Net income (loss) per common share attributable to common stockholders - diluted1:
$0.01 $(0.35)$(1.36)$(0.18)
Weighted average shares used in computing net income (loss) per common share2:
Basic3,491 3,308 3,192 3,086 
Diluted4,307 3,308 3,192 3,086 
 
2019Fourth
Quarter		Third
Quarter		Second
Quarter		First
Quarter
Net sales$3,531 $2,915 $3,082 $3,177 
Gross profit957 1,028 (109)98 
Net loss(1,308)(946)(2,254)(2,865)
    
Net loss per common share (basic and diluted)1
$(0.53)$(0.38)$(0.91)$(1.18)
Shares outstanding (basic and diluted)2
2,480 2,474 2,467 2,425 

1 In accordance with Topic 260 "Earnings Per Share", net income has been allocated to holders of common shares and participating securities including preferred shares and warrants, accordingly. Earnings per share disclosed above utilizes income attributable to common shareholders after this required allocation.
2Shares outstanding for prior periods have been restated for the 1-for-5 reverse stock split effective June 11, 2020.