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Note 6 - Loan Payable (Details) (USD $) | 0 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 15, 2011 | Jun. 30, 2013 | Mar. 31, 2012 | Jun. 30, 2013 | Dec. 31, 2012
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Line of Credit Facility Maturity |  |  |  |  | 4 years
Line of Credit Facility, Amount Outstanding | $ 5,200,000 | $ 5,200,000 |  | $ 5,200,000 |
Proceeds from Lines of Credit |  |  | 5,200,000 |  |
Stock Repurchased and Retired During Period, Value | 6,171,656 | 259,875 |  | 259,875 |
Derivative Asset, Fair Value, Gross Asset |  | (800,635) |  | (800,635) | 444,782
Maximum Total Funded Debt To EBITDA Ratio |  |  |  | 2.00:1; and (ii)Minimum Fixed Charge Coverage of 1.20:1 |
Line of Credit Facility Maximum Annual Capital Expenditure Ceiling |  |  |  | 3,600,000 |
Bank of Montreal (“BMO”) U.S. Base Rate Plus Percent [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.25%
LIBOR Plus Percent [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 2.50%
Foreign Exchange Risk [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 3,500,000 |  | 3,500,000 |
Line of Credit Facility, Covenant Period |  |  |  | 18 months |
Derivative Asset, Fair Value, Gross Asset |  | 18,100,000 |  | 18,100,000 |
Operating Demand Loan [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,000,000 |  | 1,000,000 |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.25% |
Line of Credit Facility, Amount Outstanding |  | 0 |  | 0 |
Line of Credit Facility, Monitoring Fee |  |  |  | 500 |
Dutch Auction Member |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Stock Repurchased During Period, Shares (in Shares) |  |  | 4,114,121 |  |
Share Price (in Dollars per share) |  |  | $ 1.50 |  |
Stock Repurchased and Retired During Period, Value |  |  |  | 6,171,656 |
Stock Repurchased And Retired During Period Transaction Cost |  |  |  | 106,000 |
Stock Repurchase [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  | 0.20%
DLR Loan [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | 14,000,000
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.25%
Line of Credit Facility, Amount Outstanding |  | 2,300,000 |  | 2,300,000 | 3,700,000
Revolving Demand Loan Facilities [Member] |  |  |  |  |
Note 6 - Loan Payable (Details) [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | 14,000,000
Line of Credit Facility Share Repurchase Limit |  |  |  |  | $ 2,000,000

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- Definition Fair value before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226000-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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 Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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