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Note 3 - Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest	$ 1,303	$ 47	$ 66
Income taxes, net of refunds	3,463	3,878	3,562
Non-cash investing and financing activities:
Capital additions accrued but not yet paid	$ 218	$ 85	$ 87

X

- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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