Note 11 - Related Party Transactions (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended		3 Months Ended			3 Months Ended
	Feb. 27, 2012 Committed Payment [Member] Communal [Member]	Jan. 31, 2013 Additional Commited Payment [Member] Communal [Member]	Mar. 31, 2013 Payment [Member] Communal [Member]	Mar. 31, 2013 Commission Fee, Percentage of Net Sales [Member] Communal [Member]	Aug. 11, 2011 Chief Financial Officer [Member]	Mar. 31, 2013 Communal [Member]
Letters of Credit Outstanding, Amount					$ 250
Related Party Transaction, Amounts of Transaction	523	425	75
Related Party Transaction, Expenses from Transactions with Related Party						$ 56
Related Party Transaction, Description of Transaction				5%