Note 6 - Line of Credit and Notes Payable (Detail) (USD $)	1 Months Ended	12 Months Ended
	Mar. 31, 2012	Sep. 30, 2012
Loans Payable (in Dollars)		$ 1,700,000
Debt Instrument, Frequency of Periodic Payment		monthly
Debt Instrument, Periodic Payment, Principal (in Dollars)		15,334
Debt Instrument, Basis Spread on Variable Rate		1.40%
Debt Instrument, Interest Rate at Period End		1.63%
Payments for Loans (in Dollars)	9,400,000
Cash Flow Hedge Loss Reclassified to Interest Expense (in Dollars)	800,000
Line of Credit [Member]
Debt Instrument, Basis Spread on Variable Rate		2.75%
Debt Instrument, Interest Rate at Period End		2.98%
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)		7,000,000
Percentage of Qualified Accounts Receivable Used In Determination of Maximum Borrowing Capacity of Line of Credit		80.00%
Percentage of Qualified Inventory Used In Determination of Maximum Borrowing Capacity of Line of Credit		50.00%
Fair Value of Interest Rate Swap Agreement Threshold (in Dollars)		900,000
Line of Credit Facility, Current Borrowing Capacity (in Dollars)		$ 7,000,000
Fixed Charge Coverage Ratio		1.25
Maximum Dividend Payout Ratio Covenant		50.00%