Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Total revenue	$ 8,906,828	$ 8,548,864
Operating expenses:
Cost of product and product-related services revenue	$ 4,094,980	$ 3,991,532
Cost, Product and Service [Extensible Enumeration]	us-gaap:ProductAndServiceOtherMember	us-gaap:ProductAndServiceOtherMember
Selling, general and administrative	$ 16,546,740	$ 18,063,064
Research and development	6,088,934	6,079,907
Total operating expenses	26,730,654	28,134,503
Operating loss	(17,823,826)	(19,585,639)
Other income (expense):
Interest expense	(1,064,545)	(1,024,774)
Interest income	29,884	254,736
Other income		22,268
Gain on forgiveness of PPP Loan	1,735,792
Loss on extinguishment of MidCap Credit Facility and QNAH Convertible Note		(522,394)
Total other income (expense)	701,131	(1,270,164)
Net loss before income taxes	(17,122,695)	(20,855,803)
Provision for income taxes	(22,475)	(14,415)
Net loss	$ (17,145,170)	$ (20,870,218)
Net loss per share, basic and diluted	$ (2.47)	$ (4.51)
Shares used in computing net loss per share, basic and diluted	6,936,131	4,627,918
Product and Product-related Services
Revenue:
Total revenue	$ 8,906,828	$ 7,890,854
Collaborative Development Services
Revenue:
Total revenue		$ 658,010