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Note 12 - Common Stock and Additional Paid-in Capital (Detail) (USD $) | 1 Months Ended | 6 Months Ended | 7 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 22, 2010 | Jul. 18, 2007 | Jul. 18, 2007 | Aug. 01, 2007 | Aug. 03, 2006 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2005 | Dec. 31, 2012
Common Stock, Shares Authorized |  |  |  |  |  | 100,000,000 |  |  | 100,000,000
Stock Issued During Period, Shares, New Issues |  |  |  | 460,105 | 400,000 |  |  | 8,000,000 |
Common Stock, Shares, Outstanding |  |  |  |  |  | 20,552,568 |  | 14,000,000 | 20,627,329
Sale of Stock, Price Per Share (in Dollars per share) |  | $ 18.00 | $ 18.00 |  | $ 12.54 |  |  |  |
Proceeds from Issuance or Sale of Equity (in Dollars) |  | $ 7,200,000 |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in Dollars per share) |  | $ 0.01 | $ 0.01 | $ 0.01 |  | $ 0.01 |  |  | $ 0.01
Proceeds from Issuance of Common Stock (in Dollars) |  |  | 129,600,000 | 8,281,890 |  |  |  |  |
Proceeds From Issuance of Equity, Net of Issuance Costs (in Dollars) |  |  | 121,932,958 | 7,826,386 |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 1,080,000 | 1,080,000 |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount (in Dollars) | $ 15,000,000 |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares |  |  |  |  |  | 551,646 | 1,205,229 |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) |  |  |  |  |  | $ 4.05 | $ 5.21 |  |

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- Definition Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section B -Paragraph 11A -Chapter 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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