Note 3 - Concentration of Credit Risk	6 Months Ended
Jun. 30, 2021
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	NOTE 3: CONCENTRATION OF CREDIT RISK Cash and cash equivalents The Company had cash and cash equivalents of $5.4 million and $7.7 million at June 30, 2021 and December 31, 2020, respectively. The Company invests excess cash in U.S. treasury bills, certificates of deposit or money market accounts, all with original maturities of less than three months. Cash equivalents were $1.0 million at June 30, 2021 and December 31, 2020, respectively. The Company places most of its temporary cash investments with financial institutions, which from time to time may exceed the Federal Deposit Insurance Corporation limit. The amount at risk at June 30, 2021 and December 31, 2020 was $3,203,000 and $5,822,000, respectively. Sales concentration Revenue from a single customer in any one period can exceed 10% of our total revenues. During the three months ended June 30, 2021, three customers exceeded 10%, and represented 17.3%, 12.9% and 11.2% of revenues, and during the six months ended June 30, 2021 one customer exceeded 10%, and represented 18.0% of revenues. During the three months ended June 30, 2020, two customers exceeded 10%, and represented 42.2% and 10.0% of revenues, and during the six months ended June 30, 2020, one customer represented 37.0% of revenues. Accounts receivable The Company sells products and services to various companies across several industries in the ordinary course of business. The Company performs ongoing credit evaluations to assess the probability of accounts receivable collection based on a number of factors, including past transaction experience, evaluation of their credit history and review of the invoicing terms of the contract to determine the financial strength of its customers. The Company also maintains allowances for anticipated losses. At June 30, 2021, two customers exceeded 10% of the accounts receivable balance, representing 20.2% in total, and at December 31, 2020 two customers represented 35.0% of the accounts receivable balance.

Note 3 - Concentration of Credit Risk

6 Months Ended

Jun. 30, 2021

Concentration Risk Disclosure [Text Block]

NOTE 3: CONCENTRATION OF CREDIT RISK

Cash and cash equivalents

The Company had cash and cash equivalents of $5.4 million and $7.7 million at June 30, 2021 and December 31, 2020, respectively. The Company invests excess cash in U.S. treasury bills, certificates of deposit or money market accounts, all with original maturities of less than three months. Cash equivalents were $1.0 million at June 30, 2021 and December 31, 2020, respectively.

The Company places most of its temporary cash investments with financial institutions, which from time to time may exceed the Federal Deposit Insurance Corporation limit. The amount at risk at June 30, 2021 and December 31, 2020 was $3,203,000 and $5,822,000, respectively.

Sales concentration

Revenue from a single customer in any one period can exceed 10% of our total revenues. During the three months ended June 30, 2021, three customers exceeded 10%, and represented 17.3%, 12.9% and 11.2% of revenues, and during the six months ended June 30, 2021 one customer exceeded 10%, and represented 18.0% of revenues. During the three months ended June 30, 2020, two customers exceeded 10%, and represented 42.2% and 10.0% of revenues, and during the six months ended June 30, 2020, one customer represented 37.0% of revenues.

Accounts receivable

The Company sells products and services to various companies across several industries in the ordinary course of business. The Company performs ongoing credit evaluations to assess the probability of accounts receivable collection based on a number of factors, including past transaction experience, evaluation of their credit history and review of the invoicing terms of the contract to determine the financial strength of its customers. The Company also maintains allowances for anticipated losses. At June 30, 2021, two customers exceeded 10% of the accounts receivable balance, representing 20.2% in total, and at December 31, 2020 two customers represented 35.0% of the accounts receivable balance.