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v3.10.0.1

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Total Revenue | $ 9,544 | $ 11,481 | $ 28,502 | $ 31,706
Cost of goods sold | 6,951 | 8,303 | 21,508 | 22,361
Gross profit | 2,593 | 3,178 | 6,994 | 9,345
Operating expenses |  |  |  |
General and administrative expenses | 1,305 | 1,383 | 4,059 | 3,840
Selling expenses | 624 | 564 | 1,913 | 1,825
Total operating expenses | 1,929 | 1,947 | 5,972 | 5,665
Operating income (loss) | 664 | 1,231 | 1,022 | 3,680
Interest income (expense) |  |  |  |
Interest expense | (44) | (44) | (135) | (135)
Interest income | 10 | 9 | 29 | 28
Gain on sale of assets | 51 | 15 | 106 | 32
Other income | 11 | 11 | 30 | 35
Total other expense | 28 | (9) | 30 | (40)
Income before income tax expense | 692 | 1,222 | 1,052 | 3,640
Income tax expense (benefit) | 172 | 474 | 262 | 1,323
Net income (loss) | $ 520 | $ 748 | $ 790 | $ 2,317
Basic and diluted earnings per share (in dollars per share) | $ 0.10 | $ 0.15 |  |
Basic income (loss) per share (in dollars per share) |  |  | $ 0.16 | $ 0.46
Weighted average number of common shares outstanding: |  |  |  |
Basic (in shares) | 5,080 | 5,054 | 5,078 | 5,036
Diluted (in shares) | 5,099 | 5,099 | 5,098 | 5,075
Product sales |  |  |  |
Total Revenue | $ 6,828 | $ 9,295 | $ 21,224 | $ 21,853
Barrier rentals |  |  |  |
Total Revenue | 540 | 319 | 1,188 | 3,145
Royalty income |  |  |  |
Total Revenue | 465 | 483 | 1,193 | 1,387
Shipping and installation revenue |  |  |  |
Total Revenue | $ 1,711 | $ 1,384 | $ 4,897 | $ 5,321

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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