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Note 5 - Commitments and Contingencies - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating lease expense	$ 673	$ 812
Short term lease expense	176	207
Variable lease expense	91	107
Total operating lease cost	940	1,126
Amortization of right-of-use assets	179	230
Interest on lease liabilities	310	81
Total finance lease cost	489	311
Operating cash flows used in operating leases	766	698
Operating cash flows used in finance leases	310	81
Financing cash flows used in finance leases	$ 481	$ 505

X

- Definition

Amount of interest expense on finance lease liability.

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Amount of interest paid on finance lease liability.

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X

- Definition

Amount of cash outflow for principal payment on finance lease.

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of operating lease expense. Excludes sublease income.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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