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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, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash paid for:
Interest	$ 71	$ 664	$ 1,303
Income taxes, net of refunds	2,481	1,255	3,463
Non-cash investing and financing activities:
Capital additions accrued but not yet paid	$ 225	$ 213	$ 218

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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