Business, Organization, and Liquidity	12 Months Ended
Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Accounting [Text Block]	1. Business, Organization, and Liquidity Business and Organization Tel-Instrument Electronics Corp. (“Tel”, “TIC”, or the “Company”) has been in business since 1947. The Company is a leading designer and manufacturer of avionics test and measurement instruments for the global, commercial air transport, general aviation, and government/military defense markets. Tel provides instruments to test, measure, calibrate, and repair a wide range of airborne navigation and communication equipment. The Company sells its equipment in both domestic and international markets. Tel continues to develop new products in anticipation of customers’ needs and to maintain its strong market position. Its development of multi-function testers has made it easier for customers to perform ramp tests with less operator training, fewer test sets, and lower product support costs. The Company has become a major manufacturer and supplier of Identification Friend or Foe (“IFF”) flight line test equipment over the last two decades. Liquidity and PPP Loans On March 31, 2021, the Company had positive working capital of $3,159,731, as compared to working capital of $1,776,176 on March 31, 2020. This included $5.5 million of cash including the $2 million supersedes appeal bond. The Company also has current borrowing capacity of $690,000. As discussed in Note 21 of the Consolidated Financial Statements, the Company has recorded total damages of $5,889,023, including accrued interest, as a result of the jury verdict associated with the Aeroflex litigation as well as the Court’s decision on punitive damages. With a $7.6 million backlog on March 31, 2021,the Company expects that in fiscal year 2022, revenue and profitability will improve. This improvement should be apparent starting in the first quarter of the current fiscal year. On March 31, 2021, Bank of America extended the maturity date of our line of credit from March 31, 2021, to June 30, 2021, to allow time for a full underwriting for the annual renewal period. As of March 31, 2021, the Line of Credit draw remains at zero, with $690,000 available. On March 27, 2020, former President Trump signed the Coronavirus Aid, Relief and Economic Security (the “CARES Act”), which, among other things, outlines the provisions of the Paycheck Protection Program (the “PPP”). The Company determined that it met the criteria to be eligible to obtain a loan under the PPP because, among other reasons, in light of the COVID-19 outbreak and the uncertainty of economic conditions related thereto, the loan was considered necessary to support the Company’s ongoing operations and retain all its employees. In addition, former President Trump signed into law the Paycheck Protection Program and Health Care Enhancement Act on April 24, 2020, which increased funding provided by the CARES Act. On May 4, 2020, the Company issued a promissory note (the “Note”) to Bank of America in the principal aggregate amount of $772,577 (the “PPP Loan”) pursuant to the Paycheck Protection Program (“PPP”) under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”). The amount was deposited in our bank on May 4, 2020. On June 5, 2020, the Paycheck Protection Program Flexibility Act was signed into law and extended the program until December 31, 2020. TIC qualified for full loan forgiveness on the initial tranche on December 18, 2020. On January 6, 2021, updated PPP guidance outlining program changes to enhance its effectiveness and accessibility was released on in accordance with the Economic Aid to Hard-Hit Small Businesses, Non-Profits, and Venues Act. This was available to companies that recorded greater than a 25% sales reduction in any quarter compared to the prior year. The Company qualified for this second round of funding and on March 15, 2021, the company secured a Second Draw PPP loan in the amount of $772,577. A borrower can apply for forgiveness once all loan proceeds for which the borrower is requesting forgiveness have been used. Borrowers can apply for forgiveness any time up to the maturity date of the loan. If borrowers do not apply for forgiveness within 10 months after the last day of the covered period, then PPP loan payments are no longer deferred, and borrowers will begin making loan payments to their PPP lender. The Company plans to file for loan forgiveness of the second tranche of PPP funding during fiscal year ending March 31, 2022. Based on the foregoing, we believe that our expected cash flows from operations and current cash balances will be sufficient to operate in the normal course of business for next 12 months from the issuance date of these financial statements, including any payments for settlement of the Aeroflex litigation. Impact of the COVID-19 Coronavirus In December 2019, a novel strain of coronavirus, which causes the disease known as COVID-19, was reported to have surfaced in Wuhan, China. Since then, COVID-19 coronavirus has spread globally. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic and the U.S. government imposed travel restrictions on travel between the United States, Europe and certain other countries. The impact of this pandemic has been, and will likely continue to be, extensive in many aspects of society, which has resulted, and will likely continue to result, in significant disruptions to the global economy as well as businesses and capital markets around the world. In response to public health directives and orders and to help minimize the risk of the virus to employees, the Company has taken precautionary measures, including implementing work-from-home policies for certain employees. The impact of the virus, including work-from-home policies, may negatively impact productivity, disrupt the Company's business, and delay certain projects, the magnitude of which will depend, in part, on the length and severity of the restrictions and other limitations on the Company's ability to conduct its business in the ordinary course. Other impacts to the Company's business may include temporary closures of its suppliers and disruptions or restrictions on its employees' ability to travel. Any prolonged material disruption to the Company's employees or suppliers could adversely impact the Company's financial condition and results of operations, including its ability to obtain financing.

1. Business, Organization, and Liquidity

Business and Organization

Tel-Instrument Electronics Corp. (“Tel”, “TIC”, or the “Company”) has been in business since 1947. The Company is a leading designer and manufacturer of avionics test and measurement instruments for the global, commercial air transport, general aviation, and government/military defense markets. Tel provides instruments to test, measure, calibrate, and repair a wide range of airborne navigation and communication equipment. The Company sells its equipment in both domestic and international markets. Tel continues to develop new products in anticipation of customers’ needs and to maintain its strong market position. Its development of multi-function testers has made it easier for customers to perform ramp tests with less operator training, fewer test sets, and lower product support costs. The Company has become a major manufacturer and supplier of Identification Friend or Foe (“IFF”) flight line test equipment over the last two decades.

Liquidity and PPP Loans

On March 31, 2021, the Company had positive working capital of $3,159,731, as compared to working capital of $1,776,176 on March 31, 2020. This included $5.5 million of cash including the $2 million supersedes appeal bond. The Company also has current borrowing capacity of $690,000. As discussed in Note 21 of the Consolidated Financial Statements, the Company has recorded total damages of $5,889,023, including accrued interest, as a result of the jury verdict associated with the Aeroflex litigation as well as the Court’s decision on punitive damages.

With a $7.6 million backlog on March 31, 2021,the Company expects that in fiscal year 2022, revenue and profitability will improve. This improvement should be apparent starting in the first quarter of the current fiscal year.

On March 31, 2021, Bank of America extended the maturity date of our line of credit from March 31, 2021, to June 30, 2021, to allow time for a full underwriting for the annual renewal period. As of March 31, 2021, the Line of Credit draw remains at zero, with $690,000 available.

On March 27, 2020, former President Trump signed the Coronavirus Aid, Relief and Economic Security (the “CARES Act”), which, among other things, outlines the provisions of the Paycheck Protection Program (the “PPP”). The Company determined that it met the criteria to be eligible to obtain a loan under the PPP because, among other reasons, in light of the COVID-19 outbreak and the uncertainty of economic conditions related thereto, the loan was considered necessary to support the Company’s ongoing operations and retain all its employees. In addition, former President Trump signed into law the Paycheck Protection Program and Health Care Enhancement Act on April 24, 2020, which increased funding provided by the CARES Act. On May 4, 2020, the Company issued a promissory note (the “Note”) to Bank of America in the principal aggregate amount of $772,577 (the “PPP Loan”) pursuant to the Paycheck Protection Program (“PPP”) under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”). The amount was deposited in our bank on May 4, 2020. On June 5, 2020, the Paycheck Protection Program Flexibility Act was signed into law and extended the program until December 31, 2020.

TIC qualified for full loan forgiveness on the initial tranche on December 18, 2020. On January 6, 2021, updated PPP guidance outlining program changes to enhance its effectiveness and accessibility was released on in accordance with the Economic Aid to Hard-Hit Small Businesses, Non-Profits, and Venues Act. This was available to companies that recorded greater than a 25% sales reduction in any quarter compared to the prior year. The Company qualified for this second round of funding and on March 15, 2021, the company secured a Second Draw PPP loan in the amount of $772,577. A borrower can apply for forgiveness once all loan proceeds for which the borrower is requesting forgiveness have been used. Borrowers can apply for forgiveness any time up to the maturity date of the loan. If borrowers do not apply for forgiveness within 10 months after the last day of the covered period, then PPP loan payments are no longer deferred, and borrowers will begin making loan payments to their PPP lender. The Company plans to file for loan forgiveness of the second tranche of PPP funding during fiscal year ending March 31, 2022.

Based on the foregoing, we believe that our expected cash flows from operations and current cash balances will be sufficient to operate in the normal course of business for next 12 months from the issuance date of these financial statements, including any payments for settlement of the Aeroflex litigation.

Impact of the COVID-19 Coronavirus

In December 2019, a novel strain of coronavirus, which causes the disease known as COVID-19, was reported to have surfaced in Wuhan, China. Since then, COVID-19 coronavirus has spread globally. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic and the U.S. government imposed travel restrictions on travel between the United States, Europe and certain other countries. The impact of this pandemic has been, and will likely continue to be, extensive in many aspects of society, which has resulted, and will likely continue to result, in significant disruptions to the global economy as well as businesses and capital markets around the world.

In response to public health directives and orders and to help minimize the risk of the virus to employees, the Company has taken precautionary measures, including implementing work-from-home policies for certain employees. The impact of the virus, including work-from-home policies, may negatively impact productivity, disrupt the Company's business, and delay certain projects, the magnitude of which will depend, in part, on the length and severity of the restrictions and other limitations on the Company's ability to conduct its business in the ordinary course. Other impacts to the Company's business may include temporary closures of its suppliers and disruptions or restrictions on its employees' ability to travel. Any prolonged material disruption to the Company's employees or suppliers could adversely impact the Company's financial condition and results of operations, including its ability to obtain financing.