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Note 3 - Long-Term Debt (Detail) (USD $)	0 Months Ended	1 Months Ended		3 Months Ended
	Mar. 05, 2013	Oct. 30, 2012	Jul. 25, 2011	Mar. 31, 2013	Oct. 30, 2010	Oct. 19, 2010	Jun. 30, 2006
Debt Instrument, Face Amount					$ 3,200,000		$ 36,400,000
Line of Credit Facility, Maximum Borrowing Capacity		10,000,000				10,000,000
Line of Credit Facility, Increase, Additional Borrowings (in Dollars)	17,500,000	5,000,000
Line of Credit Facility, Increase (Decrease), Other, Net			3,000,000
Warrants and Rights Outstanding		533,000
Long-term Debt				83,936,000
Long Term Debt Term	3 years
Convertible Debt				53,715,000
Convertible Debt Term	5 years
Working Capital	17,500,000			9,600,000
Gains (Losses) on Extinguishment of Debt				(835,000)
Legal Fees				1,200,000
Includes Legal Fees For Debt Refinancing [Member]
Gains (Losses) on Extinguishment of Debt				(1,055,000)
Corporate Term Debt [Member]
Long-term Debt	66,000,000
Convertible Bond [Member]
Convertible Debt	53,500,000
Debt Instrument, Interest Rate, Stated Percentage	7.00%
Debt Instrument, Convertible, Conversion Price (in Dollars per share)	$ 8.05
Senior Secured Mortgage Loan [Member]
Mortgage Loans on Real Estate	$ 30,000,000
Debt Instrument, Interest Rate, Stated Percentage	8.00%

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Interest rate stated in the contractual debt agreement.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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Increase for additional borrowings on the credit facility during the period.

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Net increase or decrease in the carrying amount of the credit facility for the period for reasons other than accrued, but unpaid interest, additional borrowings, repayments, and forgiveness.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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