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Note F - Debt (Details Textual) - USD ($) |  | 3 Months Ended
--- | --- | ---
Jul. 01, 2019 | Mar. 31, 2020
Proceeds from Long-term Lines of Credit |  | $ 10,000,000
Line of Credit Facility, Remaining Borrowing Capacity |  | $ 0
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 10,000,000 |
Long-term Debt, Percentage Bearing Fluctuating Interest, Threshold Amount | 100,000 |
Minimum Prepayment Amount Under Line of Credit | $ 100,000 |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
Debt Instrument Basis Spread on Elected Fixed Rate Borrowing | 1.25% |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Maximum [Member] |  |
Ratio of Indebtedness to Net Capital | 1.25 |
Ratio of Total Current Assets to Total Current Liabilities | 1.75 |

X
- Definition The percentage points added to the reference rate to compute fixed rate elections on the debt instrument. + References No definition available. + Details
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X
- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a fluctuating rate when amount is less than threshold. + References No definition available. + Details
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- Definition The minimum payment amount that may be prepaid on a line of credit facility with a fixed interest rate. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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