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Long-Term Debt and Subsequent Event (Details Textual) (USD $) | 3 Months Ended | 1 Months Ended |  | 1 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 30, 2013 Revolving Credit Facility [Member] | Oct. 31, 2012 T D Bank Original Loan Agreement [Member] | Apr. 30, 2012 T D Bank [Member] | Jun. 30, 2011 T D Bank [Member] | Jan. 31, 2010 T D Bank [Member] | Oct. 31, 2012 T D Bank Amended Loan Agreement [Member] | Apr. 30, 2013 Subsequent Event [Member]
Line of Credit Facility, Maximum Amount Outstanding During Period | $ 9,600,000 |  |  |  |  |  |
Line of Credit Facility, Interest Rate During Period | 3.70% |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End | 2.96% |  |  |  |  |  |
Line of Credit Facility, Periodic Payment | 131,470 |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 30,000,000 |  |  |  | 17,500,000 |
Line of Credit Facility, Interest Rate Description |  | LIBOR plus 2.50% |  |  |  | LIBOR plus 3.50% |
Line of Credit Facility, Amount Outstanding | 9,600,000 |  |  |  | 23,500,000 |  |
Line of Credit Facility, Increase, Additional Borrowings |  |  | 3,000,000 | 6,500,000 |  |  |
Debt Instrument Minimum Borrowing Capacity Amount |  |  |  |  |  |  | $ 3,500,000

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- Definition It represents the minimum borrowing capacity guaranteed under the debt. + References No definition available. + Details
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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 Increase for additional borrowings on the credit facility during the period. + 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=6881521&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 + Details
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- Definition The effective interest rate at the end of the reporting period. + 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 Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + 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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- 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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