Note 10 - Fair Value Measurements (Details) - Assets Measured at Fair Value (USD $)	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	$ 7,664,000
Cash and restricted cash	7,664,000
Finance receivables	29,286,000	6,500,000
Finance receivables	29,324,000
Marketable investments	3,119,000
Marketable investments	3,119,000
Other assets	204,000
Other assets	204,000
Warrant liability	292,000
Warrant liability	292,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	7,664,000
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable investments	3,119,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables	29,324,000
Other assets	204,000
Warrant liability	$ 292,000