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Supplementary Financial Information to Item 8. | 12 Months Ended
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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)
2020 |  | Fourth Quarter |  | Third Quarter |  | Second Quarter |  | First Quarter
Net sales |  | $ | 3,746 |  |  | $ | 5,964 |  |  | $ | 3,335 |  |  | $ | 3,783 |
Gross profit |  | 1,434 |  |  | 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 - basic 1: |  | $ | 0.01 |  |  | $ | (0.35) |  |  | $ | (1.36) |  |  | $ | (0.18) |
Net income (loss) per common share attributable to common stockholders - diluted 1: |  | $ | 0.01 |  |  | $ | (0.35) |  |  | $ | (1.36) |  |  | $ | (0.18) |
Weighted average shares used in computing net income (loss) per common share 2: |  |  |  |  |  |  |  |
Basic |  | 3,491 |  |  | 3,308 |  |  | 3,192 |  |  | 3,086 |
Diluted |  | 4,307 |  |  | 3,308 |  |  | 3,192 |  |  | 3,086 |
2019 |  | Fourth Quarter |  | Third Quarter |  | Second Quarter |  | First Quarter
Net sales |  | $ | 3,531 |  |  | $ | 2,915 |  |  | $ | 3,082 |  |  | $ | 3,177 |
Gross profit |  | 957 |  |  | 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. 2 Shares outstanding for prior periods have been restated for the 1-for-5 reverse stock split effective June 11, 2020.

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- References No definition available. + Details
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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