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Note 1 - Business (Details) (USD $)	36 Months Ended				0 Months Ended
	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2012	Jan. 13, 2014 Common Stock [Member]
Note 1 - Business (Details) [Line Items]
Stockholders' Equity Note, Stock Split, Conversion Ratio					20
Retained Earnings (Accumulated Deficit)	$ (238,870,000)	$ (256,408,000)
Proceeds from Issuance of Long-term Debt and Capital Securities, Net	135,400,000
Cash and Cash Equivalents, at Carrying Value	$ 72,287,000	$ 57,475,000	$ 45,722,000	$ 53,506,000

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The cash inflow associated with security instrument that either represents a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes proceeds from (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c).

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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