Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue:
Total revenue	$ 2,074,204	$ 1,963,294	$ 3,509,350	$ 4,188,768
Operating expenses:
Cost of product and product-related services revenue	$ 971,043	$ 974,642	$ 1,756,243	$ 1,990,134
Type of Cost, Good or Service [Extensible List]	Product and Product-related Services	Product and Product-related Services	Product and Product-related Services	Product and Product-related Services
Selling, general and administrative	$ 3,903,815	$ 4,255,485	$ 7,763,434	$ 8,930,748
Research and development	1,281,361	1,732,776	2,653,401	3,659,051
Total operating expenses	6,156,219	6,962,903	12,173,078	14,579,933
Operating loss	(4,082,015)	(4,999,609)	(8,663,728)	(10,391,165)
Other income (expense):
Interest expense	(260,289)	(250,759)	(530,646)	(476,089)
Interest income	7,820	68,002	14,032	209,898
Other income				22,268
Gain on forgiveness of PPP Loan	1,735,792		1,735,792
Loss on extinguishment of MidCap Credit Facility and QNAH Convertible Note		(522,394)		(522,394)
Total other income (expense)	1,483,323	(705,151)	1,219,178	(766,317)
Net loss before income taxes	(2,598,692)	(5,704,760)	(7,444,550)	(11,157,482)
Provision for income taxes	(16,260)	(5,791)	(18,709)	(10,967)
Net loss	$ (2,614,952)	$ (5,710,551)	$ (7,463,259)	$ (11,168,449)
Net loss per share, basic and diluted	$ (0.39)	$ (1.30)	$ (1.17)	$ (2.57)
Shares used in computing net loss per share, basic and diluted	6,687,330	4,383,831	6,365,827	4,344,180
Product and Product-related Services
Revenue:
Total revenue	$ 2,074,204	$ 1,728,526	$ 3,509,350	$ 3,716,663
Collaborative Development Services
Revenue:
Total revenue		$ 234,768		$ 472,105