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Note 15 - Commitments and Contingencies - Summary of General Office Facilities and Equipment (Details) | Dec. 31, 2016 USD ($)
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Contractual lease obligations, 2017 | $ 1,113,000
Purchase obligations, 2017 | 18,051,000
Total obligations, 2017 | 19,164,000
Contractual lease obligations, 2018 | 1,059,000
Purchase obligations, 2018 | 19,471,000
Total obligations, 2018 | 20,530,000
Contractual lease obligations, 2019 | 1,022,000
Purchase obligations, 2019 | 83,000
Total obligations, 2019 | 1,105,000
Contractual lease obligations, 2020 | 964,000
Purchase obligations, 2020 | 18,000
Total obligations, 2020 | 982,000
Contractual lease obligations, 2021 | 303,000
Purchase obligations, 2021 | 8,000
Total obligations, 2021 | 311,000
Contractual lease obligations, thereafter | 1,138,000
Purchase obligations, thereafter | 43,000
Total obligations, thereafter | 1,181,000
Contractual lease obligations, total | 5,599,000
Purchase obligations, total | 37,674,000
Total obligations | $ 43,273,000

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