Note 13 - Subsequent Event (Detail) (USD $)	0 Months Ended	10 Months Ended
	Nov. 02, 2012	Nov. 02, 2012	Sep. 30, 2012
Debt Instrument, Payment Terms	five
Line of Credit Facility, Maximum Borrowing Capacity	$ 55,000	$ 55,000
Fixed Asset Sub Line Facility	5,000	5,000
Line of Credit Facility, Increase, Additional Borrowings	5,000
Line of Credit Facility, Commitment Fee Percentage		0.375%
Loan Covenant Requirment Excess Availability	9,625	9,625
Line of Credit Facility, Amount Outstanding	22,917	22,917
Line of Credit Facility, Remaining Borrowing Capacity	17,334	17,334
Letters of Credit Outstanding, Amount	2,500	2,500	2,500,000
Restated Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity	55,000	55,000
Minimum [Member] | Percentage Amount Over LIBOR [Member]
Debt Instrument, Interest Rate, Stated Percentage	2.00%	2.00%
Minimum [Member]
Line of Credit Facility, Maximum Borrowing Capacity	45,000	45,000
Maximum [Member] | Percentage Amount Over LIBOR [Member]
Debt Instrument, Interest Rate, Stated Percentage	2.50%	2.50%
Maximum [Member]
Line of Credit Facility, Maximum Borrowing Capacity	55,000	55,000
Base Rate Loan Percentage [Member]
Debt Instrument, Interest Rate, Stated Percentage	1.00%	1.00%
Percentage Amount Over Federal Funds Rate [Member]
Debt Instrument, Interest Rate, Stated Percentage	0.50%	0.50%
Percentage Amount Over One Month LIBOR Rate [Member]
Debt Instrument, Interest Rate, Stated Percentage	1.00%	1.00%
Consolidated Basis [Member]
Loan Covenant Requirment Excess Availability	$ 4,000	$ 4,000