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v3.20.1

Consolidated Statements of Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Revenue |  |
Total revenue | $ 46,691 | $ 40,220
Cost of goods sold | 36,722 | 29,730
Gross profit | 9,969 | 10,490
General and administrative expenses | 4,887 | 5,675
Selling expenses | 2,536 | 2,599
Total operating expenses | 7,423 | 8,274
Operating income | 2,546 | 2,216
Other income (expense) |  |
Interest expense | (179) | (176)
Interest income | 40 | 42
Gain on sale of assets | 46 | 126
Other income | 55 | 51
Total other income (expense) | (38) | 43
Income before income tax expense | 2,508 | 2,259
Income tax expense | 549 | 572
Net income | $ 1,959 | $ 1,687
Basic and diluted earnings per share | $ 0.38 | $ 0.33
Product Sales |  |
Revenue |  |
Total revenue | $ 32,228 | $ 29,159
Barrier Rentals |  |
Revenue |  |
Total revenue | 2,488 | 1,729
Royalties |  |
Revenue |  |
Total revenue | 1,672 | 1,675
Shipping and Installation |  |
Revenue |  |
Total revenue | $ 10,303 | $ 7,657

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