Note 9 - Subsequent Event (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		0 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014	Aug. 13, 2014 Board of Directors Chairman [Member] The 2014 Note [Member]	Jun. 30, 2014 Board of Directors Chairman [Member] The 2014 Note [Member]
Note 9 - Subsequent Event (Details) [Line Items]
Proceeds from Convertible Debt	$ 1,000	$ 2,000		$ 1,000
Convertible Debt, Noncurrent	$ 23,440		$ 22,414	$ 2,000	$ 1,000

Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Name:	us-gaap_ConvertibleDebtNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant