CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
NET REVENUE
Total net revenue	$ 19,263	$ 10,297	$ 34,491	$ 19,493
COSTS OF REVENUE AND OPERATING EXPENSES
Costs of revenue - devices and supplies	4,061	1,948	7,462	3,732
Sales and marketing	6,332	3,081	11,541	5,554
General and administrative	4,785	2,684	8,945	5,367
Total costs of revenue and operating expenses	15,178	7,713	27,948	14,653
Income from operations	4,085	2,584	6,543	4,840
Other income/ (expense)
Deferred insurance reimbursement	0	0	0	880
Interest expense	(5)	0	(9)
Other income/ (expense), net	(5)	0	(9)	880
Income from operations before income taxes	4,080	2,584	6,534	5,720
Income tax expense	1,063	422	580	1,208
Net Income	$ 3,017	$ 2,162	$ 5,954	$ 4,512
Net income per share:
Basic	$ 0.09	$ 0.07	$ 0.18	$ 0.14
Diluted	$ 0.09	$ 0.06	$ 0.17	$ 0.13
Weighted average basic shares outstanding	33,283	32,326	33,098	32,279
Weighted average diluted shares outstanding	34,454	33,953	34,329	33,837
Devices [Member]
NET REVENUE
Total net revenue	$ 4,281	$ 2,288	$ 7,725	$ 4,263
Supplies [Member]
NET REVENUE
Total net revenue	$ 14,982	$ 8,009	$ 26,766	$ 15,230