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Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Results of Operations (Unaudited) | Note 13 – Quarterly results of operations (unaudited):
| Quarter ended |
| March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
| (In millions, except per share amounts) |
2018: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 28.4 |  |  | $ | 32.4 |  |  | $ | 30.0 |  |  | $ | 27.4 |
Gross margin |  | 9.5 |  |  |  | 11.2 |  |  |  | 9.6 |  |  |  | 7.9 |
Operating income |  | 4.4 |  |  |  | 6.0 |  |  |  | 4.5 |  |  |  | 2.9 |
Net income |  | 3.7 |  |  |  | 5.0 |  |  |  | 3.9 |  |  |  | 2.7 |
Basic and diluted earnings per share | $ | .30 |  |  | $ | .40 |  |  | $ | .32 |  |  | $ | .22 |
2019: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 31.2 |  |  | $ | 33.7 |  |  | $ | 29.7 |  |  | $ | 29.6 |
Gross margin |  | 9.6 |  |  |  | 10.9 |  |  |  | 9.5 |  |  |  | 9.0 |
Operating income |  | 4.3 |  |  |  | 5.6 |  |  |  | 4.3 |  |  |  | 3.5 |
Net income |  | 4.0 |  |  |  | 4.9 |  |  |  | 3.9 |  |  |  | 3.2 |
Basic and diluted earnings per share | $ | .32 |  |  | $ | .39 |  |  | $ | .31 |  |  | $ | .26 |
The sum of the quarterly per share amounts may not equal the annual per share amounts due to relative changes in the weighted-average number of shares used in the per share computations.

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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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