Note 11 - Liabilities (Detail) (USD $) In Millions, unless otherwise specified				12 Months Ended	17 Months Ended	1 Months Ended	17 Months Ended
	Dec. 31, 2012 Spread On LIBOR Base [Member]	Dec. 31, 2012 Spread On Federal Funds Rate [Member]	Dec. 31, 2012 Spread On Daily One-Month LIBOR [Member]	Dec. 31, 2012 Quarterly Payments [Member] Term Loan [Member]	Dec. 31, 2012 Scheduled Principal Payments [Member] Term Loan [Member]	Feb. 28, 2013 Extra Principal Payments [Member] Term Loan [Member]	Dec. 31, 2012 Extra Principal Payments [Member] Term Loan [Member]	Dec. 31, 2012 Term Loan [Member]	Jul. 31, 2011 Term Loan [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity								$ 20.0		$ 5.0
Debt Instrument, Basis Spread on Variable Rate	3.50%	1.50%	1.50%
Line of Credit Facility, Periodic Payment, Principal				1.0
Line of Credit Facility, Amount Outstanding									20.0
Line of Credit Facility, Decrease, Repayments					$ 6.0	$ 10.0	$ 1.0