Note 1 - Description of Business, Basis of Presentation and Summary of Significant Accounting Policies (Detail) - Estimated Useful Lives	12 Months Ended
	Dec. 31, 2012
Software [Member]
Property and equipment, estimated useful lives	2 to 3
Computer Equipment [Member]
Property and equipment, estimated useful lives	3 to 5
Vehicles [Member]
Property and equipment, estimated useful lives	4 to 5
Office Equipment [Member]
Property and equipment, estimated useful lives	5 to 10
Property, Plant and Equipment, Other Types [Member]
Property and equipment, estimated useful lives	3 to 13
Trademarks [Member]
Intangible assets, estimated useful lives	5 years
Internet Domain Names [Member]
Intangible assets, estimated useful lives	5 years
Mobile Applications [Member]
Intangible assets, estimated useful lives	5 years
Advertising Relationships [Member]
Intangible assets, estimated useful lives	3 years