Summary of significant accounting policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, and cash equivalents and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same amounts shown in the condensed consolidated statements of cash flows:

	March 31, 2021		December 31, 2020		March 31, 2020		December 31, 2019
Cash and cash equivalents	$	39,397,437	$	13,360,463	$	11,469,455	$	2,708,223
Restricted cash		569,052		746,792		185,380		185,380
Total cash and cash equivalents and restricted cash in the condensed consolidated statements of cash flows	$	39,966,489	$	14,107,255	$	11,654,835	$	2,893,603

Schedule of Inventories

Inventories are valued using the first-in, first-out method and stated at the lower of cost or net realizable value and consist of the following: 

	March 31, 2021		December 31, 2020
Raw materials and supplies	$	833,242	$	773,021
Work-in-process		109,164		87,159
Finished goods		2,532,050		2,312,148
Total	$	3,474,456	$	3,172,328

Schedule of Finite-Lived Intangible Assets

Intangible assets include trademarks, developed technology, In-Process Research & Development, software and customer relationships and consisted of the following as of March 31, 2021 and December 31, 2020:

					March 31, 2021							December 31, 2020
	Subsidiary		Cost		Accumulated Amortization			Effect of Foreign Exchange Rates		Net Balance		Accumulated Amortization			Impairment			Effect of Foreign Exchange Rates		Net Balance
Trademarks and tradenames		AdvanDx	$	461,000	$	—		$	—	$	—	$	(217,413	)	$	(243,587	)	$	—	$	—
Developed technology		AdvanDx		458,000		—			—		—		(308,526	)		(149,474	)		—		—
Customer relationships		AdvanDx		1,094,000		—			—		—		(736,465	)		(357,535	)		—		—
Trademarks and tradenames		Curetis		1,768,000		(187,484	)		106,815		1,687,331		(147,161	)		—			194,119		1,814,958
Distributor relationships		Curetis		2,362,000		(166,984	)		142,700		2,337,716		(131,070	)		—			259,336		2,490,266
A50 - Developed technology		Curetis		349,000		(52,876	)		21,086		317,210		(41,504	)		—			38,319		345,815
Ares - Developed technology		Curetis		5,333,000		(403,937	)		322,190		5,251,253		(317,060	)		—			585,536		5,601,476
A30 - In-Process Research & Development		Curetis		5,706,000		—			357,141		6,063,141		—			—			622,448		6,328,448
			$	17,531,000	$	(811,281	)	$	949,932	$	15,656,651	$	(1,899,199	)	$	(750,596	)	$	1,699,758	$	16,580,963

Schedule of Estimated Useful Lives of Identifiable Intangible Assets

The estimated useful lives of the intangibles are:

	Estimated Useful Life
Trademarks and tradenames	10 years
Customer/distributor relationships	15 years
A50 – Developed technology	7 years
Ares – Developed technology	14 years
A30 – Acquired in-process research & development	Indefinite

Schedule of Expected Amortization of Intangible Assets

Total amortization expense of intangible assets was $197,842 and $66,954 for the three months ended March 31, 2021 and 2020, respectively. Expected future amortization of intangible assets is as follows:

Year Ending December 31,
2021 (Nine months)	$	608,457
2022		811,276
2023		811,276
2024		811,276
2025		811,276
2026		811,276
Thereafter		4,928,673
Total	$	9,593,510

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill as of March 31, 2021, and since December 31, 2020, were as follows:

Balance as of December 31, 2020	$	8,024,729
Changes in currency translation		(330,328	)
Balance as of March 31, 2021	$	7,694,401