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Note 6 - Borrowings (Details) (USD $)
In Millions, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Debt Disclosure [Abstract]  
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) $ 50
Line of Credit Facility, Borrowing Capacity, Description Advances are made pursuant to a borrowing base comprised of 85% of eligible accounts receivable plus 60% of eligible direct inventory plus 50% of eligible indirect inventory. Advances are secured by a perfected first priority security interest in accounts receivable and inventory
Line of Credit Facility, Borrowing Base, Percentage of Eligible Accounts Receivable 85.00%
Line of Credit Facility, Borrowing Base, Percentage of Eligible Direct Inventory 60.00%
Line of Credit Facility, Borrowing Base, Percentage of Eligible Indirect Inventory 50.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%
Ratio of EBITDA to Fixed Charges 3