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Note 5 - Commitments and Contingencies - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating lease expense	$ 159	$ 204	$ 506	$ 612
Short term lease expense	44	28	146	138
Variable lease expense	23	30	68	84
Total operating lease cost	226	262	720	834
Amortization of right-of-use assets	26	58	115	168
Interest on lease liabilities	98	20	217	61
Total finance lease cost	124	78	332	229
Operating cash flows used in operating leases	184	179	522	519
Operating cash flows used in finance leases	98	20	216	61
Financing cash flows used in finance leases	$ 132	$ 126	$ 314	$ 373

X

- Definition

Amount of interest expense on finance lease liability.

+ References

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X

- Definition

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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X

- Definition

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

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- Definition

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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