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