Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Nominal or face amount used to calculate payment on derivative.

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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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.

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Note 8 - Indebtedness (Details Textual) - USD ($)		12 Months Ended
Note 8 - Indebtedness (Details Textual) - USD ($)	Feb. 01, 2018	Dec. 31, 2019	Dec. 31, 2018
Interest Rate Swap [Member]
Derivative, Notional Amount	$ 20,000,000	$ 14,285,712
Derivative, Term of Contract	5 years
Derivative, Fixed Interest Rate	2.70%
Interest Rate Swap [Member] \| Other Nonoperating Income (Expense) [Member]
Derivative, Gain (Loss) on Derivative, Net, Total		388,000	$ 64,000
Interest Rate Swap [Member] \| Other Current Liabilities [Member]
Derivative, Fair Value, Net, Total		$ 325,000
Subsidiary Guarantors [Member] \| Unsecured Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member]
Debt Instrument, Face Amount	$ 70,000,000
Debt Instrument, Interest Rate, Effective Percentage		2.80%
Letters of Credit Outstanding, Amount	$ 700,000
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Prime Rate [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Prime Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Unsecured Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 50,000,000
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Unsecured Term Loan [Member]
Debt Instrument, Face Amount	$ 20,000,000