Note 3 - Long-term Debt - Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Long-term debt, gross	$ 90,438		$ 94,375
Payments due within one year included in current liabilities	5,156		4,688
Debt issuance costs	837		898
Long-term debt less current maturities	84,445	$ 88,789	88,789
PNC Bank [Member] \| Revolving Credit Facility [Member]
Long-term debt, gross	22,000		25,000
BB&T [Member] \| Term Loan Maturing May 2020 [Member]
Long-term debt, gross	$ 68,438		$ 69,375

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

No definition available.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

+ References

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-Topic 210
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