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Note 11 - Stockholders's Equity: (Details) (USD $) | 9 Months Ended |  | 1 Months Ended | 13 Months Ended | 1 Months Ended | 3 Months Ended |  |  |
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Sep. 30, 2013 | Jan. 31, 2013 | Jan. 31, 2013 Dutch Auction Tender Offer [Member] | Jan. 31, 2013 Dutch Auction Tender Offer [Member] | Mar. 31, 2013 Stock Buyback Program [Member] | Mar. 31, 2013 Stock Buyback Program [Member] | Sep. 30, 2013 DLR Loan [Member] | Jan. 31, 2013 DLR Loan [Member] | Dec. 31, 2012 DLR Loan [Member]
Note 11 - Stockholders's Equity: (Details) [Line Items] |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares (in Shares) |  |  |  | 4,114,121 |  | (143,073) |  |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) |  |  |  | $ 1.50 |  |  |  |  |
Stock Repurchased and Retired During Period, Value | $ (6,277,741) |  | $ 6,171,656 | $ 6,171,656 |  | $ 259,875 |  |  |
Stock Repurchased Transaction Costs |  |  |  | 106,000 |  |  |  |  |
Line of Credit Facility, Amount Outstanding |  |  |  |  |  |  | 5,200,000 | 5,200,000 | 3,700,000
Shares, Outstanding (in Shares) |  | 40,226,875 |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 10,000,000 |  |  |  |
Stock Repurchase Program, Period in Force |  |  |  |  | 12 months |  |  |  |

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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 Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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