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Note 7 - Schedule of Applicable Margin, New Pricing (Details) - USD ($)
 2 Months Ended 7 Months Ended
Sep. 30, 2015
Jul. 31, 2015
Level I [Member] | Minimum [Member]    
Line of Credit Facility, Remaining Borrowing Capacity $ 40,000,000 $ 75,000,000
Level I [Member] | Base Rate [Member]    
I 0.50% 0.50%
Level I [Member] | London Interbank Offered Rate (LIBOR) [Member]    
I 1.50% 1.50%
Level I [Member]    
Line of Credit Facility, Remaining Borrowing Capacity
Level II [Member] | Minimum [Member]    
Line of Credit Facility, Remaining Borrowing Capacity $ 20,000,000 $ 50,000,000
Level II [Member] | Maximum [Member]    
Line of Credit Facility, Remaining Borrowing Capacity $ 40,000,000 $ 75,000,000
Level II [Member] | Base Rate [Member]    
I 0.75% 0.75%
Level II [Member] | London Interbank Offered Rate (LIBOR) [Member]    
I 1.75% 1.75%
Level II [Member]    
Line of Credit Facility, Remaining Borrowing Capacity
Level III [Member] | Minimum [Member]    
Line of Credit Facility, Remaining Borrowing Capacity   $ 25,000,000
Level III [Member] | Maximum [Member]    
Line of Credit Facility, Remaining Borrowing Capacity $ 20,000,000 $ 50,000,000
Level III [Member] | Base Rate [Member]    
I 1.00% 1.00%
Level III [Member] | London Interbank Offered Rate (LIBOR) [Member]    
I 2.00% 2.00%
Level III [Member]    
Line of Credit Facility, Remaining Borrowing Capacity
Line of Credit Facility, Remaining Borrowing Capacity $ 61,600,000