Note 8 - Restructuring and Severance Costs (Details) (2010 Restructuring Plan Contract Terminations [Member], USD $)	12 Months Ended
Dec. 31, 2011
2010 Restructuring Plan Contract Terminations [Member]
Note 8 - Restructuring and Severance Costs (Details) [Line Items]
Payments for Restructuring	$ 280,000

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_PaymentsForRestructuring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration