Summary of Significant Accounting Policies - Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Segments
Number of reportable segment | segment	1
Revenue	$ 80,275	$ 69,300	$ 58,453
Cost of revenue (excluding amortization of intangible assets)	25,554	22,432	17,961
Amortization of intangible assets	380	380	380
Gross profit	54,341	46,488	40,112
Sales and marketing:
Total sales and marketing	63,182	64,648	59,681
General and Administrative:
Total general and administrative	15,694	14,722	14,887
Research and Development:
Total research and development	9,220	8,813	9,619
Gain on sale of product line		7,580
Net loss	(38,831)	(37,841)	(46,664)
Single reportable segment
Segments
Revenue	80,275	69,300	58,453
Cost of revenue (excluding amortization of intangible assets)	25,554	22,432	17,961
Amortization of intangible assets	380	380	380
Gross profit	54,341	46,488	40,112
Sales and marketing:
Sales and sales management	43,365	44,132	35,469
International	5,711	5,072	3,916
Other sales and marketing	14,106	15,444	20,296
Total sales and marketing	63,182	64,648	59,681
General and Administrative:
Finance and Legal	7,461	7,503	7,715
Other general and administrative	8,233	7,219	7,172
Total general and administrative	15,694	14,722	14,887
Research and Development:
Clinical	3,568	4,068	3,891
Regulatory and quality	2,158	1,452	2,189
Other research and development	3,494	3,293	3,539
Total research and development	9,220	8,813	9,619
Gain on sale of product line		7,580
Other segment items	(5,076)	(3,726)	(2,589)
Net loss	$ (38,831)	$ (37,841)	$ (46,664)