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Note 10 - Debt (Details Textual) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 10, 2020 | Apr. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Apr. 01, 2019
Proceeds from Lines of Credit, Total |  |  |  | $ 2,800 |  |
Proceeds from Paycheck Protection Program Under CARES Act |  | $ 2,829 |  |  |  |
M&T [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 7,500 |  |  |  |  | $ 125
Letters of Credit Outstanding, Amount |  |  |  |  |  | $ 90
Line of Credit Facility, Current Borrowing Capacity |  |  |  | $ 7,500 |  |
Debt Instrument, Interest Rate, Stated Percentage | 2.00% |  |  |  |  |
Proceeds from Lines of Credit, Total |  |  | $ 2,800 |  |  |
M&T [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |  |  |  |

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- Definition The cash inflow received from loan funding under the Paycheck Protection Program which was established under the Coronavirus Aid, Relief and Economic Security (CARES) Act in March 2020. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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