Note 6 - Debt (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Credit Facility, Variable Interest Rate [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%