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Note 11 - Stockholders's Equity (Details) (USD $) | 1 Months Ended | 3 Months Ended |  | 13 Months Ended | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2013 Dutch Auction Tender Offer [Member] | Mar. 31, 2013 Stock Buyback Program [Member] | Mar. 31, 2013 Stock Buyback Program [Member] | Jan. 31, 2013 DLR Loan [Member]
Note 11 - Stockholders's Equity (Details) [Line Items] |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares (in Shares) | 6,092 |  |  | 1,028,531 |  |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) |  |  |  | $ 6.00 |  |  |
Stock Repurchased and Retired During Period, Value | $ 82,286 | $ (82,286) |  | $ 6,171,656 |  |  |
Stock Repurchased Transaction Costs |  |  |  | 106,000 |  |  |
Line of Credit Facility, Amount Outstanding |  |  |  |  |  |  | 5,200,000
Shares, Outstanding (in Shares) |  |  | 10,056,719 |  |  |  |
Stock Repurchase Program, Authorized Amount | 20,000,000 |  |  |  | 10,000,000 |  |
Stock Repurchased During Period, Shares (in Shares) |  |  |  |  |  | 35,769 |
Stock Repurchased During Period, Value |  |  |  |  |  | $ 259,875 |

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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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