Note 2 - Notes Payable - Maturities of Notes Payable (Details) $ in Thousands	Sep. 30, 2018 USD ($)
2018 (remaining)	$ 1,088
2019	4,350
2020	4,350
2021	4,350
2022	62,512
Total	$ 76,650

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
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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 in 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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-SubTopic 10
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