Note 8 - Payment Protection Program	12 Months Ended
Dec. 31, 2020
Paycheck Protection Program CARES Act [Member]
Notes to Financial Statements
Long-term Debt [Text Block]	8. Payment Protection Program On April 21, 2020, the Company entered into a promissory note and received a Paycheck Protection Program loan (the “PPP Loan”) from the Small Business Association (“SBA”) through Comerica Bank (“Comerica”), which was established under the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”). The Company received net proceeds of $646,000 from the PPP Loan. The term of the PPP Loan is two years with an interest rate of 1.00% per annum, which shall be deferred for the first six months of the term of the loan or after an application is filed for loan forgiveness, whichever is later. Each monthly payment shall be in the amount which would fully amortize the principal balance outstanding under the PPP Loan. Pursuant to the terms of the CARES Act, the proceeds of the PPP Loan may be used for payroll costs, mortgage interest, rent or utility costs. The promissory note of the PPP Loan contains customary events of default relating to, among other things, payment defaults, breach of representations and warranties, or provisions of the promissory note. The occurrence of an event of default may result in a claim for the immediate repayment of the amount outstanding under the PPP Loan. In late December 2020, the Company applied with the SBA for forgiveness of the PPP Loan. The SBA has 90 days to review the application prior to issuing its conclusion. The Company has recorded the PPP Loan as debt as of December 2020, with a current portion of $447,000, in note payable – short-term in the consolidated balance sheets, and a noncurrent portion of $199,000. If the SBA approves the forgiveness application, the full amount will be recorded as other income at that time.

Payment Protection Program

April 21, 2020,

the Company entered into a promissory note and received a Paycheck Protection Program loan (the “PPP Loan”) from the Small Business Association (“SBA”) through Comerica Bank (“Comerica”), which was established under the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”). The Company received net proceeds of

$646,000

from the PPP Loan. The term of the PPP Loan is

two

years with an interest rate of

1.00%

per annum, which shall be deferred for the

first

six

months of the term of the loan or after an application is filed for loan forgiveness, whichever is later. Each monthly payment shall be in the amount which would fully amortize the principal balance outstanding under the PPP Loan. Pursuant to the terms of the CARES Act, the proceeds of the PPP Loan

may

be used for payroll costs, mortgage interest, rent or utility costs. The promissory note of the PPP Loan contains customary events of default relating to, among other things, payment defaults, breach of representations and warranties, or provisions of the promissory note. The occurrence of an event of default

may

result in a claim for the immediate repayment of the amount outstanding under the PPP Loan. In late

December 2020,

the Company applied with the SBA for forgiveness of the PPP Loan. The SBA has

days to review the application prior to issuing its conclusion. The Company has recorded the PPP Loan as debt as of

December 2020,

with a current portion of

$447,000,

in note payable – short-term in the consolidated balance sheets, and a noncurrent portion of

$199,000.

If the SBA approves the forgiveness application, the full amount will be recorded as other income at that time.