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Note 7 - Schedule of Applicable Margin, Prior Pricing (Details)
 7 Months Ended
Jul. 31, 2015
USD ($)
Level I [Member] | Minimum [Member]  
Line of Credit Facility, Remaining Borrowing Capacity $ 75,000,000
Level I [Member] | Base Rate [Member]  
I 0.50%
Level I [Member] | London Interbank Offered Rate (LIBOR) [Member]  
I 1.50%
Level I [Member]  
Line of Credit Facility, Remaining Borrowing Capacity
I 1.50%
Level II [Member] | Minimum [Member]  
Line of Credit Facility, Remaining Borrowing Capacity $ 50,000,000
Level II [Member] | Maximum [Member]  
Line of Credit Facility, Remaining Borrowing Capacity $ 75,000,000
Level II [Member] | Base Rate [Member]  
I 0.75%
Level II [Member] | London Interbank Offered Rate (LIBOR) [Member]  
I 1.75%
Level II [Member]  
Line of Credit Facility, Remaining Borrowing Capacity
I 1.75%
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 $ 50,000,000
Level III [Member] | Base Rate [Member]  
I 1.00%
Level III [Member] | London Interbank Offered Rate (LIBOR) [Member]  
I 2.00%
Level III [Member]  
Line of Credit Facility, Remaining Borrowing Capacity
I 2.00%
Level IV [Member] | Maximum [Member]  
Line of Credit Facility, Remaining Borrowing Capacity $ 25,000,000
Level IV [Member] | Base Rate [Member]  
I 1.25%
Level IV [Member] | London Interbank Offered Rate (LIBOR) [Member]  
I 2.25%
Level IV [Member]  
Line of Credit Facility, Remaining Borrowing Capacity
I 2.25%