Note 5 - Goodwill and Intangible Assets (Detail) - Summary of Net Carrying Value of Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Definite-lived intangible assets:
Definite-Lived Intangible Assets	$ 545	$ 608
Total intangible assets, net	545	608
Trade Names [Member]
Definite-lived intangible assets:
Amortization Life (in years)	10 years
Definite-Lived Intangible Assets	338	350
Customer Relationships [Member]
Definite-lived intangible assets:
Amortization Life (in years)	5 years
Definite-Lived Intangible Assets	$ 207	$ 258