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Stockholders' Equity (Narrative) (Details) - USD ($)		1 Months Ended				9 Months Ended	12 Months Ended
Stockholders' Equity (Narrative) (Details) - USD ($)	Apr. 02, 2020	Dec. 31, 2020	Nov. 25, 2020	Mar. 29, 2020	Oct. 28, 2019	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Feb. 11, 2020	Jan. 17, 2018	Jan. 16, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized		50,000,000					50,000,000	50,000,000		50,000,000	200,000,000
Common stock, shares issued		25,085,534					25,085,534	5,582,280
Common stock, shares outstanding		25,085,534					25,085,534	5,582,280
Preferred stock, shares authorized		10,000,000					10,000,000	10,000,000
Preferred stock, shares issued		0					0	0
Preferred stock, shares outstanding		0					0	0
Proceeds from issuance of common stock, net of issuance costs							$ 15,821,922	$ 4,782,509
Stock options, granted							1,525,000
Share-based compensation, tax benefit from compensation expense							$ 1,300,000
Employee service share-based compensation, non-vested awards, compensation cost not yet recognized, period for recognition							3 years 1 month 6 days
Share-based compensation arrangement by share-based payment award, options, vested in period, fair value							$ 549,341	$ 375,789
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, non-vested awards, compensation cost not yet recognized, period for recognition							1 year 3 months 19 days
Employee service share-based compensation, non-vested awards, compensation cost not yet recognized, total		$ 49,000					$ 49,000
2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized		2,710					2,710
Share-based compensation arrangement by share-based payment award, description							the number of shares that have been authorized for issuance under the 2015 Plan will be automatically increased on the first day of each fiscal year beginning on January 1, 2016 and ending on (and including) January 1, 2025, in an amount equal to the lesser of (1) 4% of the outstanding shares of common stock on the last day of the immediately preceding fiscal year, or (2) another lesser amount determined by the Company’s Board of Directors.
Share-based compensation arrangement by share-based payment award, number of shares available for grant		6,025					6,025
Share-based compensation arrangement by share-based payment award, common stock percentage							4.00%
2016 Stock Option Plan [Member] \| Replacement Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of options awarded							$ 1.68
Number of share options granted							134,371
Curetis GmbH [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Acquisition of shares	2,028,208
ExecutiveOfficers And Non-Employee Directors [Member] \| 2020 Stock Options Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for future issuance amount						$ 1,300,000
Stock options, granted						1,300,000
Common Stock [Member] \| H.C. Wainwright & Co., LLC [Member] \| 2020 ATM Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, new issues							7,521,610
Proceeds from issuance of common stock, net of issuance costs							$ 15,800,000
Gross proceeds from sale of common stock							16,700,000
Remaining availability under market offering							5,400,000
Common Stock [Member] \| H.C. Wainwright & Co., LLC [Member] \| 2020 ATM Offering [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for future issuance amount									$ 22,100,000
March 2019 Public Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, new issues				450,000
Proceeds from issuance of common stock, net of issuance costs				$ 4,800,000
Gross proceeds from sale of common stock				$ 5,400,000
Shares issued, price per share				$ 12.00
October 2019 Public Offering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, new issues					2,590,170
Shares issued, price per share					$ 2.00
Class of warrant or right, exercise price of warrants or rights					$ 2.00
Warrants exercisable period					5 years
October 2019 Public Offering [Member] \| Common Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from issuance of common stock, net of issuance costs							$ 8,700,000
Warrants exercised		359,000					4,341,000
October 2019 Public Offering [Member] \| Common Stock [Member] \| Placement Agent [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class of warrant or right, exercise price of warrants or rights					$ 2.60
Warrants exercisable period					5 years
Issuance of common stock warrants to purchase					235,000
October 2019 Public Offering [Member] \| Pre-funded Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, new issues					2,109,830
Shares issued, price per share					$ 1.99
Gross proceeds from sale of common stock and warrants					$ 9,400,000
Net proceeds from sale of common stock and warrants					$ 8,300,000
Class of warrant or right, exercise price of warrants or rights					$ 0.01
Warrants exercised								2,109,830
October 2019 Public Offering [Member] \| Pre Funded Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants exercised					2,109,830
2020 PIPE [Member] \| Healthcare-focused U.S. Institutional Investor [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, new issues			2,245,400
Proceeds from issuance of common stock, net of issuance costs			$ 9,300,000
Gross proceeds from sale of common stock			$ 10,000,000
Shares issued, price per share			$ 2.065
Class of warrant or right, exercise price of warrants or rights			$ 1.94
Warrants exercisable period			6 months
Warrants exercised			4,842,615
Issuance of common stock warrants to purchase			2,245,400
Warrants expiry period			5 years 6 months
2020 PIPE [Member] \| Pre Funded Warrant [Member] \| Healthcare-focused U.S. Institutional Investor [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, new issues			2,597,215
Shares issued, price per share			$ 2.055
Warrants exercised			2,597,215
Issuance of common stock warrants to purchase			2,597,215