Note 7 - Leases - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Capital lease obligations, 2019	$ 277
Operating lease obligations, 2019	563
Total obligations, 2019	840
Capital lease obligations, 2020	277
Operating lease obligations, 2020	483
Total obligations, 2020	760
Capital lease obligations, 2021	229
Operating lease obligations, 2021	419
Total obligations, 2021	648
Capital lease obligations, 2022	32
Operating lease obligations, 2022	277
Total obligations, 2022	309
Capital lease obligations, 2023	21
Operating lease obligations, 2023	113
Total obligations, 2023	134
Capital lease obligations, thereafter	435
Operating lease obligations, thereafter
Total obligations, thereafter	435
Capital lease obligations total lease payments	1,271
Operating lease obligations, total lease payments	1,855
Total lease payments	3,126
Less imputed interest	347
Total	924
Less: current portion of obligations under finance leases	236
Long-term portion of obligations under finance leases	$ 688

Leases future minimum payments due.

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Leases future minimum payments due current.

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Leases future minimum payments due in five years.

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Leases future minimum payments due in four years.

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Leases future minimum payments due in three years.

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Leases future minimum payments due in two years.

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Leases future minimum payments due thereafter.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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