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Amount of the required quarterly payments including both interest and principal payments for the next eight years.

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The percentage of consolidated excess cash flow.

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

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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.

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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.

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Nominal or face amount used to calculate payments on the derivative asset.

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Fixed interest rate related to the interest rate derivative.

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The effective interest rate at the end of the reporting period.

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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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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Note 11 - Long Term Debt (Details Textual) - USD ($) $ in Thousands			12 Months Ended
	Dec. 22, 2020	Apr. 18, 2020	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2021	Jan. 31, 2018
Long-term Debt, Gross			$ 49,400
Debt Issuance Costs, Net, Total			1,393	$ 1,180
Repayments of Long-term Debt, Total			66,912	11,703
Payment for Debt Extinguishment or Debt Prepayment Cost			599	(0)
Write off of Deferred Debt Issuance Cost			787	0
Interest Rate Swap [Member] \| PNC Bank [Member]
Payment for Debt Extinguishment or Debt Prepayment Cost			500
Derivative Asset, Notional Amount						$ 36,000
Derivative Asset, Notional Amount Of Instrument Cancelled			$ 23,000
London Interbank Offered Rate (LIBOR) [Member] \| Interest Rate Swap [Member]
Derivative, Fixed Interest Rate						2.72%
Term Loan [Member]
Line of Credit Facility, Interest Rate at Period End			3.25%
The Credit Agreement [Member]
Debt Issuance Costs, Net, Total	$ 1,300
The Credit Agreement [Member] \| Forecast [Member]
Debt Instrument, Quarterly Payment, Current Year					$ 500
Debt Instrument Quarterly Payment Next Eight Years					750
Debt Instrument, Quarterly Payment, Thereafter					$ 1,000
Percentage of Consolidated Excess Cash Flow					50.00%
The Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Interest Rate, State Floor Percentage			0.50%
The Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate			3.25%
The Credit Agreement [Member] \| Base Rate [Member]
Debt Instrument, Interest Rate, State Floor Percentage			1.00%
The Credit Agreement [Member] \| The ABR Loan [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate			1.50%
The Credit Agreement [Member] \| The ABR Loan [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate			3.00%
The Credit Agreement [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Remaining Borrowing Capacity			$ 15,600
The Prior Credit Facility [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity						$ 25,000
Repayments of Long-term Debt, Total	46,700
Payment for Debt Extinguishment or Debt Prepayment Cost	600
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Long-term Debt, Total		$ 6,100
Term Loan [Member]
Long-term Debt, Gross			$ 40,000	$ 54,997
Term Loan [Member] \| The Prior Credit Facility [Member]
Long-term Debt, Gross						$ 64,000
Term Loan [Member] \| The Prior Credit Facility [Member] \| Revolving Credit Facility [Member]
Write off of Deferred Debt Issuance Cost	800
The LIBOR Loan and Pricing Grid Credit Agreement [Member] \| The Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate			2.00%
The Lenders [Member] \| The Credit Agreement [Member] \| Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	10,000
The Lenders [Member] \| The Credit Agreement [Member] \| Swingline Loan Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	10,000
The Lenders [Member] \| The Credit Agreement [Member] \| Revolving Credit Facility [Member] \| Minimum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.25%
The Lenders [Member] \| The Credit Agreement [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.50%
The Lenders [Member] \| Term Loan [Member] \| The Credit Agreement [Member]
Long-term Debt, Gross	40,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 25,000