Accrued interest fully forgiven.

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Class of warrant or right outstanding per warrant.

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Class of warrant or right outstanding percentage equal to original principal.

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Debt conversion floor price.

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Debt instrument extended maturity date.

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Discount for non interest bearing convertible note.

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Discount for non interest bearing convertible note expiration date.

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Loan fully forgiven.

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Monthly amortization payments percentage of initial principal.

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Number of Individuals.

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Number of lines of credit.

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Number of term loans outstanding.

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Number of trading days.

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Percentage of market price.

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Volume weighted average price of common stock period.

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Volume weighted average price percentage.

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Volume weighted average price, period.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of warrants or rights outstanding.

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Face amount or stated value per share of common stock.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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The name of the original debt issue that has been converted in a noncash (or part noncash) transaction during the accounting period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The rate of interest that was being paid on the original debt issue that is being converted in the noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The price per share of the conversion feature embedded in the debt instrument.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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Face (par) amount of debt instrument at time of issuance.

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The average effective interest rate during the reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Amount of the required periodic payments including both interest and principal payments.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Debt - Additional Information (Details)														1 Months Ended	3 Months Ended
Debt - Additional Information (Details)	Feb. 16, 2022 EUR (€)	Feb. 01, 2022 EUR (€)	Jun. 18, 2021 EUR (€)	Jun. 04, 2021 EUR (€)	Apr. 09, 2021 EUR (€)	Jul. 01, 2020	Jun. 25, 2020 EUR (€)	May 11, 2020 USD ($)	Apr. 24, 2020 USD ($) $ / shares	Apr. 20, 2020 USD ($) $ / shares	Apr. 09, 2020 EUR (€)	Apr. 01, 2019 USD ($)	Apr. 01, 2019 EUR (€)	Apr. 30, 2019 USD ($) Individual $ / shares shares	Mar. 31, 2022 USD ($) LineofCredit TermLoan $ / shares	Mar. 31, 2021 USD ($)	Mar. 31, 2022 EUR (€) LineofCredit TermLoan	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2021 EUR (€)	May 03, 2021 USD ($)	Apr. 01, 2019 EUR (€)
Debt Instrument [Line Items]
Aggregate balance outstanding															$ 2,219,128		€ 2,000,000
Debt discount amortization															1,224	$ 61,210
Proceeds from loan															$ 2,219,128
Common stock, par value \| $ / shares															$ 0.0001			$ 0.0001
April 2019 Notes
Debt Instrument [Line Items]
Aggregate balance outstanding															$ 0			$ 0
Debt instrument, face amount														$ 350,000
Debt instrument, interest rate														9.50%
Debt instrument, monthly / quarterly principal and interest payments														$ 16,100
Number of individuals \| Individual														3
Debt maturity term														2 years
Warrants to purchase common stock percentage equal to original principal														10.00%
Warrants exercise price \| $ / shares														$ 2.15
Warrants to purchase common stock \| shares														16,276
Estimated fair value of each warrants \| $ / shares														$ 0.90
April 2019 Notes \| Warrants
Debt Instrument [Line Items]
Fair value of the warrant issued														$ 14,037
April 2019 Notes \| Warrants \| Exercise Price
Debt Instrument [Line Items]
Warrants exercise price \| $ / shares														$ 2.15
April 2019 Notes \| Warrants \| Contractual Term
Debt Instrument [Line Items]
Fair value assumptions														5 years
April 2019 Notes \| Warrants \| Volatility Rate
Debt Instrument [Line Items]
Fair value assumptions														0.4460
April 2019 Notes \| Warrants \| Dividend Rate
Debt Instrument [Line Items]
Fair value assumptions														0.000
April 2019 Notes \| Warrants \| Risk-free Interest Rate
Debt Instrument [Line Items]
Fair value assumptions														0.02307
April 2019 Related Party Notes \| Board of Directors
Debt Instrument [Line Items]
Aggregate balance outstanding															0			0
Debt instrument, face amount														$ 1,150,000
Debt instrument, interest rate														9.50%
Debt instrument, monthly / quarterly principal and interest payments														$ 52,900
Number of individuals \| Individual														3
Debt maturity term														2 years
Warrants to purchase common stock percentage equal to original principal														10.00%
Warrants exercise price \| $ / shares														$ 2.15
Warrants to purchase common stock \| shares														53,490
Estimated fair value of each warrants \| $ / shares														$ 0.90
April 2019 Related Party Notes \| Warrants
Debt Instrument [Line Items]
Fair value of the warrant issued														$ 46,121
April 2019 Related Party Notes \| Warrants \| Exercise Price
Debt Instrument [Line Items]
Warrants exercise price \| $ / shares														$ 2.15
April 2019 Related Party Notes \| Warrants \| Contractual Term
Debt Instrument [Line Items]
Fair value assumptions														5 years
April 2019 Related Party Notes \| Warrants \| Volatility Rate
Debt Instrument [Line Items]
Fair value assumptions														0.4260
April 2019 Related Party Notes \| Warrants \| Dividend Rate
Debt Instrument [Line Items]
Fair value assumptions														0.000
April 2019 Related Party Notes \| Warrants \| Risk-free Interest Rate
Debt Instrument [Line Items]
Fair value assumptions														0.023067
Senior Secured Convertible Promissory Notes \| Securities Purchase Agreement
Debt Instrument [Line Items]
Debt instrument, interest rate									0.00%
Debt instrument, maturity date									Apr. 01, 2022
Debt discount amortization															0	7,519
Non-interest bearing convertible note									$ 3,000,000	$ 6,000,000					$ 3,000,000
Original issue discount rate									10.00%	10.00%
Common stock, par value \| $ / shares										$ 0.0001
Debt instrument, initial conversion price per share \| $ / shares									$ 2.50	$ 2.50
Debt instrument, aggregate purchase price									$ 2,700,000
Non-interest bearing convertible note expiration date															Apr. 20, 2021
Debt instrument, conversion price percentage, eligibility of conversion									135.00%
Monthly amortization payments percentage of initial principal						0.04545%
Debt instrument, redemption price percentage						105.00%									110.00%
Remaining balance of convertible notes															$ 2,590,909
Debt instrument, conversion description									Subject to the satisfaction of certain equity conditions set forth in the notes, installment amounts could be satisfied in shares of our common stock, with such installment conversion at a conversion price equal to the lower of (i) the conversion price then in effect; and (ii) the greater of (x) the floor price of $1.00 (80% of the Nasdaq market price at date of purchase agreement) and (y) the lower of (I) 82.5% the volume weighted average price of our common stock on the trading day immediately before the applicable installment date and (II) 82.5% of the quotient of (A) the sum of the volume weighted average price of our common stock for each of the three (3) trading days with the lowest volume weighted average price of our common stock during the twenty (20) consecutive trading day period ending and including the trading day immediately prior to the applicable installment date, divided by (B) three (3).
Percentage of market price									80.00%
Volume weighted average price of common stock period									3 days
Volume weighted average price period									20 days
Number of trading days, shares pre-delivered									2 days
Debt discount amortization															1,161	50,928
Original issue discount rate									$ 316,274
Debt issuance costs amortized															$ 1,223	$ 53,690
PPP Loan
Debt Instrument [Line Items]
Proceeds from loan								$ 1,499,360
Loan fully forgiven																				$ 1,499,360
Accrued interest fully forgiven																				$ 14,994
PPP Loan \| Two Year Promissory Note
Debt Instrument [Line Items]
Debt instrument, interest rate								1.00%
Debt instrument, maturity date								Apr. 28, 2022
Maximum \| Senior Secured Convertible Promissory Notes \| Securities Purchase Agreement
Debt Instrument [Line Items]
Volume weighted average price percentage									82.50%
Minimum \| Senior Secured Convertible Promissory Notes \| Securities Purchase Agreement
Debt Instrument [Line Items]
Debt conversion floor price \| $ / shares									$ 1.00
Volume weighted average price percentage									82.50%
Bressner Technology GmbH
Debt Instrument [Line Items]
Number of term loans outstanding \| TermLoan															4		4
Debt instrument, face amount \| €	€ 500,000	€ 500,000	€ 500,000	€ 500,000	€ 500,000		€ 500,000				€ 500,000
Bressner Technology GmbH \| Term Loans
Debt Instrument [Line Items]
Aggregate balance outstanding															$ 2,219,128		€ 2,000,000
Bressner Technology GmbH \| Note Payable Maturing on March 30, 2021
Debt Instrument [Line Items]
Debt instrument, face amount												$ 586,189									€ 500,000
Debt instrument, interest rate												2.25%									2.25%
Debt instrument, maturity date												Mar. 30, 2021	Mar. 30, 2021
Debt instrument, monthly / quarterly principal and interest payments												$ 24,960	€ 22,232
Term Loans \| Bressner Technology GmbH
Debt Instrument [Line Items]
Aggregate balance outstanding															$ 554,782		€ 500,000	568,825	€ 500,000
Debt instrument, interest rate	1.58%	1.95%	1.487%	1.55%	1.60%		1.87%				1.90%				1.685%		1.685%
Debt instrument, maturity date	Aug. 16, 2022	Aug. 01, 2022	Dec. 17, 2021	Nov. 30, 2021	Sep. 30, 2021		Jun. 18, 2021				Apr. 09, 2021				Mar. 31, 2022
Debt instrument, extended maturity date			Jun. 17, 2022		Sep. 30, 2022
German Institutions \| Revolving Credit Facility \| Bressner Technology GmbH
Debt Instrument [Line Items]
Number of lines of credit \| LineofCredit															3		3
Total outstanding balance															$ 0			$ 0
German Institutions \| Revolving Credit Facility \| Bressner Technology GmbH \| Maximum
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity															$ 2,441,041		€ 2,200,000
Line of credit current rate															4.00%
German Institutions \| Revolving Credit Facility \| Bressner Technology GmbH \| Minimum
Debt Instrument [Line Items]
Line of credit current rate															3.10%
Line of Credit from VR Bank \| Term Loans \| Bressner Technology GmbH
Debt Instrument [Line Items]
Aggregate balance outstanding															$ 554,782		500,000
Line of Credit from UniCredit Bank \| Term Loans \| Bressner Technology GmbH
Debt Instrument [Line Items]
Aggregate balance outstanding															$ 554,782		€ 500,000