Note 12 - Income Taxes (Details) (USD $)	4 Months Ended	6 Months Ended	12 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jan. 31, 2011	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2012 Domestic Tax Authority [Member]	Jun. 30, 2013 State Income Tax [Member]	Jun. 30, 2013 State Income Tax [Member]	Jun. 30, 2013 Federal Alternative Minimum Tax [Member]	Jun. 30, 2013 Federal Alternative Minimum Tax [Member]	Jun. 30, 2013 Net Deferred Tax Asset [Member]	Jun. 30, 2013 Net Deferred Tax Asset [Member]	Jun. 30, 2013 Minimum [Member]	Jun. 30, 2013 Maximum [Member]
Note 12 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards				$ 23,900,000
Operating Loss Carryforwards To Be Expired In Year One			4,800,000
Operating Loss Carryforwards To Be Expired In Year Two			8,800,000
Operating Loss Carryforwards To Be Expired In Year Three			10,300,000
Operating Income (Loss)		6,200,000
Deferred Tax Assets, Net of Valuation Allowance		31,800,000
Deferred Tax Assets, Valuation Allowance		30,500,000
Deferred Tax Assets, Net		1,273,000
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross		3,400,000
Proceeds from Issuance of Common Stock	113,900,000
Realization Period For Net Unrealized Pre Acquisition Built In Losses Under Certain Limitation		5 years
Estimated Future Utilization Of Built In Losses		53,000,000
Estimated Future Utilization Of Built In Losses Per Year		1,100,000
Estimated Built In Losses Unrealizable											8,000,000	9,000,000
Income Tax Provision Benefit					$ 71,000	$ 170,000	$ 57,000	$ 113,000	$ 254,000	$ 912,000