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Refers to offering costs related notes.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Note 7 - Debt (Details) - USD ($) $ in Thousands									12 Months Ended
Note 7 - Debt (Details) - USD ($) $ in Thousands	Nov. 24, 2021	Oct. 29, 2021	Aug. 16, 2021	Jul. 23, 2021	Jul. 13, 2021	Jul. 13, 2020	Apr. 20, 2020	Apr. 16, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt
Debt issuance costs incurred									$ 2,356
Current portion of long-term debt									7,674	$ 4,872
Long-term Debt, Total									45,513
Other income									7,429	11,926	$ 1,758
Outstanding principal amount									43,376	$ 17,450
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt
Debt Instrument, Basis Spread on Variable Rate		2.00%
Fed Funds Effective Rate Overnight Index Swap Rate
Debt
Debt Instrument, Basis Spread on Variable Rate		0.50%
Revolving Credit Facility
Debt
Amount of remaining availability									39,100
Outstanding on Revolving Credit Facility									0
Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt
Debt Instrument, Basis Spread on Variable Rate		2.00%
Revolving Credit Facility \| Base Rate
Debt
Debt Instrument, Basis Spread on Variable Rate		1.50%
Term Loan
Debt
Amount of monthly installments									$ 278
Term Loan \| London Interbank Offered Rate (LIBOR)
Debt
Debt Instrument, Basis Spread on Variable Rate									5.15%
Senior Notes.
Debt
Aggregate principal amount						$ 34,500
Effective interest rate						10.45%
Interest rate						9.00%
Unamortized premium/discount						$ 2,100
Redemption price percentage					100.00%
Amount of note offering costs						$ 2,400
Equipment Loan
Debt
Aggregate principal amount								$ 4,700
Annual percent of premium prepayment								3.00%
Annual premium decline in premium prepayment								1.00%
Interest rate								7.45%
Amount of monthly installments								$ 147
Number Of Monthly Installments								36 months
PPP Loan
Debt
Proceeds from loan							$ 8,400
Other income							$ 8,400
KeyBank National Association \| Revolving Credit Facility
Debt
Aggregate principal amount		$ 30,000
Line of Credit Facility, Maximum Borrowing Capacity		40,000
KeyBank National Association \| Letter of Credit
Debt
Aggregate principal amount		3,000
KeyBank National Association \| Term Loan
Debt
Aggregate principal amount		$ 10,000
J. H. Fletcher & Co
Debt
Aggregate principal amount	$ 3,900			$ 900
Interest rate	0.00%			0.00%
Amount of monthly installments	$ 200			$ 200
Number Of Monthly Installments	24 months			24 months
Komatsu Financial Limited Partnership
Debt
Aggregate principal amount			$ 1,000
Interest rate			4.60%
Amount of monthly installments			$ 36
Amount of monthly installments until maturity			$ 28
Number Of Monthly Installments			36 months