Note 2 - COVID-19 Pandemic	9 Months Ended
Sep. 30, 2021
Notes to Financial Statements
Effect of Covid-19 Pandemic [Text Block]	2. COVID-19 Pandemic The outbreak of coronavirus (“COVID-19”) which was declared by the World Health Organization to be a pandemic, has impacted, and is expected to continue to impact worldwide economic activity. While our domestic business was deemed an essential business and we have been able to continue to provide services to our customers, COVID-19 has had a significant impact on our entire operations. COVID-19’s effect on the overall economy has had an adverse impact on hiring; which has had a negative impact on both our domestic and international testing volume. The Coronavirus Aid, Relieve and Economic Security Act (“CARES”) Act, enacted on March 27, 2020, and the Families First Coronavirus Response Act, in each case modified by the Consolidated Appropriations Act enacted in December 2020, was an emergency economic stimulus package that included spending provisions and tax cuts to strengthen the United States economy and to fund a nationwide effort to curtail the effect of COVID-19. The principal impact of the CARES Act and subsequent legislation was the adoption of the Paycheck Protection Program (“PPP”) described below. The CARES Act, together with subsequent legislation, also provided sweeping tax changes in response to the COVID-19 pandemic, including amendments to certain provisions of the previously enacted Tax Cuts and Jobs Act. The Company recognized a benefit of $0.8 million and $2.5 million for the three and nine months ended September 30, 2021, as a reduction to cost of revenues and operating expenses related to the employee retention credit which was a tax provision in the CARES Act and subsequent legislation. Additionally, the CARES Act allowed the Company to fully carryback the 2020 net operating loss, for a refund of corporate income taxes previously paid. See Item 2: “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Liquidity and Capital Resources”. *Liquidity and Management’s Plans* At September 30, 2021, the Company’s principal sources of liquidity included approximately $2.0 million of cash. Management currently believes that such funds, together with future operating profits should be adequate to fund anticipated working capital requirements, including equipment financing obligations, and capital expenditures for at least the next 12 months. Depending upon the Company’s results of operations, its future capital needs and available marketing opportunities, the Company may use various financing sources to raise additional funds. Such sources could include but are not limited to, issuance of common stock, debt financing, lines of credit, or equipment leasing, although there is no assurance that such financings will be available to the Company on terms it deems acceptable, if at all. *Accounts Receivable* The Company believes its allowance for credit losses related to its accounts receivable remained adequate as of September 30, 2021, due to the essential nature of its customers business, as well as the diversity of its large customer base. While the Company anticipates there could be an increase in the aging of its accounts receivable, the Company does not anticipate a significant increase in default risk. *Risk and Uncertainties* The duration and severity of COVID-19-related potential disruptions involve risks and uncertainties, and it is not possible at this time to estimate the full impact on the Company’s business and could adversely affect our estimates, results of operations and financial condition.

Note 2 - COVID-19 Pandemic

9 Months Ended

Sep. 30, 2021

Effect of Covid-19 Pandemic [Text Block]

2. COVID-19 Pandemic

The outbreak of coronavirus (“COVID-19”) which was declared by the World Health Organization to be a pandemic, has impacted, and is expected to continue to impact worldwide economic activity. While our domestic business was deemed an essential business and we have been able to continue to provide services to our customers, COVID-19 has had a significant impact on our entire operations. COVID-19’s effect on the overall economy has had an adverse impact on hiring; which has had a negative impact on both our domestic and international testing volume.

The Coronavirus Aid, Relieve and Economic Security Act (“CARES”) Act, enacted on March 27, 2020, and the Families First Coronavirus Response Act, in each case modified by the Consolidated Appropriations Act enacted in December 2020, was an emergency economic stimulus package that included spending provisions and tax cuts to strengthen the United States economy and to fund a nationwide effort to curtail the effect of COVID-19. The principal impact of the CARES Act and subsequent legislation was the adoption of the Paycheck Protection Program (“PPP”) described below. The CARES Act, together with subsequent legislation, also provided sweeping tax changes in response to the COVID-19 pandemic, including amendments to certain provisions of the previously enacted Tax Cuts and Jobs Act. The Company recognized a benefit of $0.8 million and $2.5 million for the three and nine months ended September 30, 2021, as a reduction to cost of revenues and operating expenses related to the employee retention credit which was a tax provision in the CARES Act and subsequent legislation. Additionally, the CARES Act allowed the Company to fully carryback the 2020 net operating loss, for a refund of corporate income taxes previously paid. See Item 2: “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Liquidity and Capital Resources”.

Liquidity and Management’s Plans

At September 30, 2021, the Company’s principal sources of liquidity included approximately $2.0 million of cash. Management currently believes that such funds, together with future operating profits should be adequate to fund anticipated working capital requirements, including equipment financing obligations, and capital expenditures for at least the next 12 months. Depending upon the Company’s results of operations, its future capital needs and available marketing opportunities, the Company may use various financing sources to raise additional funds. Such sources could include but are not limited to, issuance of common stock, debt financing, lines of credit, or equipment leasing, although there is no assurance that such financings will be available to the Company on terms it deems acceptable, if at all.

Accounts Receivable

The Company believes its allowance for credit losses related to its accounts receivable remained adequate as of September 30, 2021, due to the essential nature of its customers business, as well as the diversity of its large customer base. While the Company anticipates there could be an increase in the aging of its accounts receivable, the Company does not anticipate a significant increase in default risk.

Risk and Uncertainties

The duration and severity of COVID-19-related potential disruptions involve risks and uncertainties, and it is not possible at this time to estimate the full impact on the Company’s business and could adversely affect our estimates, results of operations and financial condition.