Note 7 - Notes Payable - Summarizes Principal Payment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
2019	$ 2,962
2020	144,919
2021	8,553
2022	8,866
2023	9,191
Thereafter	751,122
Total	$ 925,613	$ 855,116

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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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