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Note 6 - Loan Payable (Detail) (USD $) | 0 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  |  |  | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 15, 2011 | Aug. 11, 2011 | Aug. 31, 2011 | Mar. 31, 2012 | Jun. 30, 2012 | Jul. 28, 2011 | Jun. 30, 2012 Stock Repurchase [Member] | Jun. 30, 2011 Bank of Montreal (“BMO”) U.S. Base Rate Plus Percent [Member] | Jun. 30, 2011 LIBOR Plus Percent [Member] | Jun. 30, 2012 Foreign Exchange Risk [Member] | Jun. 30, 2011 Foreign Exchange Risk [Member] | Jun. 30, 2012 Operating Demand Loan [Member] | Jun. 30, 2011 Operating Demand Loan [Member] | Jun. 30, 2012 DLR Loan [Member] | Mar. 31, 2012 DLR Loan [Member] | Jun. 30, 2012 Revolving Demand Loan Facilities [Member]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) | $ 4,000,000 |  |  |  |  |  |  |  |  | $ 3,500,000 |  |  | $ 1,000,000 | $ 8,000,000 |  | $ 8,000,000
Line of Credit Facility Share Repurchase Limit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  | 1.25% | 2.50% |  |  |  | 1.25% | 1.25% |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  |  | 0.20% |  |  |  |  |  |  |  |  |
Line of Credit Facility Maturity |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  |  | 2,500,000 |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Decrease, Repayments |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Increase, Additional Borrowings |  |  | 2,500,000 | 4,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares (in Shares) |  |  |  | 7,570,236 |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in Dollars per share) |  |  |  | $ 0.77 |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value (in Dollars) | 5,829,082 |  |  | 5,829,082 |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchased And Retired During Period Transaction Cost |  |  |  | 64,000 |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Amount Outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,000,000 |
Line of Credit Facility, Covenant Period |  |  |  |  |  |  |  |  |  | 18 months |  |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset |  |  |  |  |  |  |  |  |  |  | 20,200,000 |  |  |  |  |
Line of Credit Facility, Monitoring Fee |  |  |  |  |  |  |  |  |  |  |  | 500 |  |  |  |
Line of Credit Facility, Covenant Terms |  |  |  |  | The Amended Credit Facility also requires that the Company comply with certain customary non-financial covenants and restrictions. In addition, the Company has agreed to comply with the following financial covenants at all times: (i) Maximum Senior Funded Debt to EBITDA of 2.00:1; (ii) Maximum Total Funded Debt to EBITDA of 2.50:1; and (iii) Minimum Fixed Charge Coverage of 1.25:1. Further, the Maximum Annual Capital Expenditures cannot exceed $3.6 million per year, which limit will be reviewed on an annual basis. As of, and for the period ended, June30,2012, the Company was in compliance with these covenants |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Annual Capital Expenditure Ceiling |  |  |  |  | $ 3,600,000 |  |  |  |  |  |  |  |  |  |  |

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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 Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 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 210.5-02.19(b),22(b)) -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 19, 22 -Article 5 + Details
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