Note 4 - Leases - Minimum Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Year ending December 31, 2019, minimum rental commitments		$ 5,227
Year ending December 31, 2019, amortization of above market lease intangible to rent expense		(153)
Year ending December 31, 2019, amortization of below market lease intangible to rent expense		551
Year ending December 31, 2019, amortization of below market lease intangible, net, to rent expense	$ 369	398
Year ending December 31, 2020, minimum rental commitments		5,265
Year ending December 31, 2020, amortization of above market lease intangible to rent expense	(153)	(153)
Year ending December 31, 2020, amortization of below market lease intangible to rent expense	522	551
Year ending December 31, 2020, amortization of below market lease intangible, net, to rent expense	369	398
Year ending December 31, 2021, minimum rental commitments		5,271
Year ending December 31, 2021, amortization of above market lease intangible to rent expense	(153)	(153)
Year ending December 31, 2021, amortization of below market lease intangible to rent expense	522	551
Year ending December 31, 2021, amortization of below market lease intangible, net, to rent expense	369	398
Year ending December 31, 2022, minimum rental commitments		5,292
Year ending December 31, 2022, amortization of above market lease intangible to rent expense	(153)	(153)
Year ending December 31, 2022, amortization of below market lease intangible to rent expense	522	551
Year ending December 31, 2022, amortization of below market lease intangible, net, to rent expense	369	398
Year ending December 31, 2023, minimum rental commitments		5,298
Year ending December 31, 2023, amortization of above market lease intangible to rent expense	(153)	(153)
Year ending December 31, 2023, amortization of below market lease intangible to rent expense	522	551
Year ending December 31, 2023, amortization of below market lease intangible, net, to rent expense	369	398
Thereafter, minimum rental commitments		71,153
Thereafter, amortization of above market lease intangible to rent expense	(1,569)	(1,722)
Thereafter, amortization of below market lease intangible to rent expense	7,117	8,762
Thereafter, amortization of below market lease intangible, net, to rent expense	5,548	7,040
Total, minimum rental commitments		97,506
Total, amortization of above market lease intangible to rent expense	(2,334)	(2,487)
Total, amortization of below market lease intangible to rent expense	9,727	11,517
Total, amortization of below market lease intangible, net, to rent expense	$ 7,393	$ 9,030

Amount of above market amortization expense for operating lease.

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Amount of above market amortization expense for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of above market amortization expense for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of above market amortization expense for operating lease, due in fourth fiscal year following latest fiscal year.

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Amount of above market amortization expense for operating lease, due in third fiscal year following latest fiscal year.

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Amount of above market lease amortization expense for operating lease, in second fiscal year following latest fiscal year.

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Amount before amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

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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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