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Note 6 - Debt (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Interest Rate Margins on Outstanding Debt [Table Text Block]

Quarterly Average Undrawn Borrowing Availability		Applicable Margin for Alternate Base Rate Loans				Applicable Margin for LIBOR Rate Loans
Greater than $8,000,000			1.00%				2.00%
$5,000,000 up to $8,000,000			1.25%				2.25%
Less than $5,000,000			1.50%				2.50%

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Tabular disclosure of interest rate margins on outstanding debt.

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