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Note 4 - Credit Facilities - Summary of Credit and Other Debt Facilities (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Repayments of principal, 2019	$ 10,414
Repayments of principal, 2020	487
Repayments of principal, 2021	300
Repayments of principal, 2022	300
Repayments of principal, 2023	700
Branco Bradesco [Member]
Repayments of principal, 2019	910
Repayments of principal, 2020
Repayments of principal, 2021
Repayments of principal, 2022
Repayments of principal, 2023
Branco Santander [Member]
Interest Rate	1.38%
Repayments of principal, 2019	$ 98
Repayments of principal, 2020
Repayments of principal, 2021
Repayments of principal, 2022
Repayments of principal, 2023
PNC Bank, National Association [Member]
Interest Rate	5.02%
Repayments of principal, 2019	$ 8,747
Repayments of principal, 2020
Repayments of principal, 2021
Repayments of principal, 2022
Repayments of principal, 2023
Fifth Third Bank [Member]
Interest Rate	4.97%
Repayments of principal, 2019
Repayments of principal, 2020
Repayments of principal, 2021
Repayments of principal, 2022
Repayments of principal, 2023
Resource Plus Acquisition Note [Member]
Interest Rate	1.85%
Repayments of principal, 2019	$ 333
Repayments of principal, 2020	334
Repayments of principal, 2021	300
Repayments of principal, 2022	300
Repayments of principal, 2023	$ 700
National Australia Bank [Member]
Interest Rate	6.60%
Repayments of principal, 2019	$ 326
Repayments of principal, 2020
Repayments of principal, 2021
Repayments of principal, 2022
Repayments of principal, 2023
Bancomer Bank and Shareholder Loan [Member]
Interest Rate	12.23%
Repayments of principal, 2019
Repayments of principal, 2020	153
Repayments of principal, 2021
Repayments of principal, 2022
Repayments of principal, 2023
Minimum [Member] | Branco Bradesco [Member]
Interest Rate	0.37%
Maximum [Member] | Branco Bradesco [Member]
Interest Rate	0.92%

X

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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