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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
NET REVENUE |  |
Total net revenue | $ 45,472 | $ 31,917
COSTS OF REVENUE AND OPERATING EXPENSES |  |
Costs of revenue - devices and supplies | 8,814 | 6,038
Sales and marketing | 14,016 | 6,503
General and administrative | 11,576 | 9,006
Total costs of revenue and operating expenses | 34,406 | 21,547
Income from operations | 11,066 | 10,370
Other income/(expense) |  |
Deferred insurance reimbursement | 880 |
Interest income/(expense) | (5) | (154)
Other income/(expense), net | 875 | (154)
Income from operations before income taxes | 11,941 | 10,216
Income tax expense | 2,449 | 664
Net income | $ 9,492 | $ 9,552
Net income per share: |  |
Basic | $ 0.29 | $ 0.29
Diluted | $ 0.28 | $ 0.28
Weighted average basic shares outstanding | 32,439 | 32,503
Weighted average diluted shares outstanding | 33,963 | 34,043
Devices [Member] |  |
NET REVENUE |  |
Total net revenue | $ 10,713 | $ 6,822
Supplies [Member] |  |
NET REVENUE |  |
Total net revenue | $ 34,759 | $ 25,095

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