Note 5 - Goodwill and Intangible Assets (Detail) - Intangible Assets (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Goodwill		$ 672
Definite-lived intangible assets:
Definite-lived intangible assets, carrying value	608	1,027
Total intangible assets, net	608	1,699
Trade Names [Member]
Definite-lived intangible assets:
Definite-lived intangible assets, amortization life	10 years
Definite-lived intangible assets, carrying value	350	400
Customer Relationships [Member]
Definite-lived intangible assets:
Definite-lived intangible assets, amortization life	5 years
Definite-lived intangible assets, carrying value	$ 258	$ 627