Note 12 - Major Customers (Detail)	12 Months Ended
Dec. 31, 2011 Corrected [Member] Accounts Receivable [Member]	Dec. 31, 2011 Corrected [Member] Customer A [Member]	Dec. 31, 2010 Corrected [Member] Customer A [Member]	Dec. 31, 2011 Original [Member] Accounts Receivable [Member]	Dec. 31, 2011 Original [Member] Customer A [Member]	Dec. 31, 2010 Original [Member] Customer A [Member]	Dec. 31, 2012 Accounts Receivable [Member]	Dec. 31, 2010 Revenue [Member]	Dec. 31, 2011 Customer B [Member]
Concentration Risk, Percentage	33.00%	27.00%	21.00%	12.00%	17.00%	14.00%	10.00%	10.00%	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration