Accrued interest fully forgiven.

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- Definition

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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- Definition

Debt conversion floor price.

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Debt instrument extended maturity date.

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Debt instrument maturity period.

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- Definition

Discount for non interest bearing convertible note.

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Discount for non interest bearing convertible note expiration date.

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Existing loans original term.

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Loan forgiveness period.

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Loan fully forgiven.

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Minimum percentage of funds spent on payroll costs.

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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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Payroll costs exclude compensation of individual employee.

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Percentage of forgiven amount for non-payroll costs.

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Percentage of funds spend on other eligible expenses.

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Percentage of market price.

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Percentage of reduction in salaries and wages for employees.

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Renegotiated term under payback protection program flexibility act.

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Salaries and wages of employees.

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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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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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No definition available.

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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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No definition available.

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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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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Debt - Additional Information (Details)												1 Months Ended			9 Months Ended	12 Months Ended
Debt - Additional Information (Details)	Jun. 18, 2021 EUR (€)	Jun. 04, 2021 EUR (€)	Apr. 09, 2021 EUR (€)	Jul. 01, 2020	Jun. 25, 2020 EUR (€)	Jun. 05, 2020	May 11, 2020 USD ($)	Apr. 24, 2020 USD ($) $ / shares	Apr. 09, 2020 EUR (€)	Apr. 01, 2019 USD ($)	Apr. 01, 2019 EUR (€)	Sep. 30, 2019 USD ($)	Apr. 30, 2019 USD ($) Individual $ / shares shares	Sep. 30, 2017 USD ($)	Sep. 30, 2021	Dec. 31, 2021 USD ($) LineofCredit TermLoan $ / shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2021 EUR (€) LineofCredit TermLoan	May 03, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Sep. 30, 2019 EUR (€)	Apr. 01, 2019 EUR (€)	Sep. 30, 2017 EUR (€)
Debt Instrument [Line Items]
Total balance outstanding																$ 3,728,560
Debt discount amortization																146,294	$ 376,004
Proceeds from loan																$ 2,307,818
Common stock, par value \| $ / shares																$ 0.0001	$ 0.0001
April 2019 Notes
Debt Instrument [Line Items]
Total balance outstanding																$ 0	$ 63,188
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 \| Exercise Price
Debt Instrument [Line Items]
Warrants exercise price \| $ / shares																$ 2.15
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]
Total balance outstanding																$ 0	206,669
Debt instrument, face amount													$ 1,150,000
Debt instrument, interest rate													9.50%
Debt instrument, monthly / quarterly principal and interest payments													$ 52,900
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
April 2019 Notes and Related Party Notes \| Warrants
Debt Instrument [Line Items]
Debt discount amortization																7,077	25,107
PPP Loan
Debt Instrument [Line Items]
Proceeds from loan							$ 1,499,360
Loan forgiveness period						168 days	56 days
Percentage of payroll requirement						60.00%
Percentage of funds spend on other eligible expenses						40.00%
Debt instrument maturity period							2 years
Existing loans original term						2 years
Renegotiated term under payback Protection Program Flexibility Act						5 years
Loan fully forgiven																			$ 1,499,360
Accrued interest fully forgiven																			$ 14,994
PPP Loan \| Minimum
Debt Instrument [Line Items]
Payroll costs exclude compensation of individual employee							$ 100,000
Percentage of reduction in salaries and wages for employees							25.00%
Debt instrument maturity period						5 years
PPP Loan \| Maximum
Debt Instrument [Line Items]
Percentage of forgiven amount for non-payroll costs							25.00%
Salaries and wages for employees							$ 100,000
PPP Loan \| Two Year Promissory Note
Debt Instrument [Line Items]
Debt instrument, interest rate							1.00%
Debt instrument, maturity date							Apr. 28, 2022
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
Non-interest bearing convertible note								$ 3,000,000								$ 3,000,000
Common stock, par value \| $ / shares								$ 0.0001
Debt instrument, initial conversion price per share \| $ / shares								$ 2.50
Original issue discount rate								10.00%
Debt instrument, aggregate purchase price								$ 2,700,000
Non-interest bearing convertible note expiration date																Apr. 24, 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%
Debt instrument, conversion description								Subject to the satisfaction of certain equity conditions set forth in the notes, installment amounts may 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																$ 139,217	168,395
Original issue discount rate								$ 316,274
Debt issuance costs amortized																$ 137,521	177,530
Senior Secured Convertible Promissory Notes \| Minimum \| Securities Purchase Agreement
Debt Instrument [Line Items]
Debt conversion floor price \| $ / shares								$ 1.00
Volume weighted average price percentage								82.50%
Senior Secured Convertible Promissory Notes \| Maximum \| Securities Purchase Agreement
Debt Instrument [Line Items]
Non-interest bearing convertible note								$ 6,000,000
Volume weighted average price percentage								82.50%
Bressner Technology GmbH
Debt Instrument [Line Items]
Number of term loans outstanding \| TermLoan																2		2
Debt instrument, face amount \| €	€ 500,000	€ 500,000	€ 500,000		€ 500,000				€ 500,000
Bressner Technology GmbH \| Term Loans
Debt Instrument [Line Items]
Total balance outstanding																$ 1,137,651		€ 1,000,000
Bressner Technology GmbH \| Note Payable Maturing on March 30, 2021
Debt Instrument [Line Items]
Total balance outstanding																	81,251			€ 66,446
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
Bressner Technology GmbH \| Note Payable Maturing on March 24, 2020
Debt Instrument [Line Items]
Debt instrument, face amount												$ 336,810									€ 300,000
Debt instrument, interest rate												1.65%									1.65%
Debt instrument, maturity date												Mar. 24, 2020
Bressner Technology GmbH \| Note Payable Maturing on January 31, 2020
Debt Instrument [Line Items]
Debt instrument, face amount														$ 436,272									€ 400,000
Debt instrument, interest rate														2.125%									2.125%
Debt instrument, maturity date														Jan. 31, 2020
Term Loans \| Bressner Technology GmbH
Debt Instrument [Line Items]
Total balance outstanding																$ 568,826	611,406	€ 500,000		€ 500,000
Debt instrument, interest rate	1.55%	1.55%	1.60%		1.87%				1.90%						1.57%
Debt instrument, maturity date	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
German Institutions \| Revolving Credit Facility \| Bressner Technology GmbH
Debt Instrument [Line Items]
Number of lines of credit \| LineofCredit																3		3
Line of credit facility, maximum borrowing capacity																$ 3,640,483		€ 3,200,000
Total outstanding balance																$ 0	$ 0
German Institutions \| Revolving Credit Facility \| Bressner Technology GmbH \| Line of Credit Facility One
Debt Instrument [Line Items]
Line of credit current rate																3.10%
German Institutions \| Revolving Credit Facility \| Bressner Technology GmbH \| Line of Credit Facility Two
Debt Instrument [Line Items]
Line of credit current rate																4.00%
Line of Credit from UniCredit Bank \| Term Loans \| Bressner Technology GmbH
Debt Instrument [Line Items]
Total balance outstanding																$ 568,825