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Debt - Additional Information (Detail) (USD $) |  | 9 Months Ended |  | 9 Months Ended | 1 Months Ended | 6 Months Ended | 9 Months Ended |  | 1 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2012 Securities Pledged as Collateral | Sep. 30, 2013 Comerica - Growth Capital Facility | Jun. 30, 2012 Comerica - Growth Capital Facility | Sep. 30, 2013 Compliance With Covenants | Sep. 30, 2011 Revolving Credit Facility Comerica - Growth Capital Facility | Jun. 30, 2012 Revolving Credit Facility Comerica - Growth Capital Facility | Sep. 30, 2013 Revolving Credit Facility Comerica - Growth Capital Facility | Sep. 30, 2012 Revolving Credit Facility Comerica - Growth Capital Facility | Dec. 31, 2012 Revolving Credit Facility Comerica - Growth Capital Facility | Apr. 30, 2013 Capital Loan Comerica - Growth Capital Facility | Sep. 30, 2011 Capital Loan Comerica - Growth Capital Facility
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Amended Credit Agreement |  |  | $ 12,000,000 |  |  | $ 7,000,000 |  |  |  |  | $ 5,000,000
Growth capital loan from amended Credit Agreement |  |  |  |  |  |  |  |  |  |  | 5,000,000
Percentage of investments made in subsidiary | 35.00% |  |  |  |  |  |  |  |  |  |
Principal and interest payments |  |  |  |  |  |  |  |  |  |  | Growth Capital Loan, which matures on September 30, 2015, bears a fixed interest rate of 6.37%, with interest-only payments due for the first twelve months, followed by equal principal and interest payments for the remaining 36 months.
Maturity period |  |  |  |  |  |  |  | Jun. 30, 2014 |  |  | Sep. 30, 2015
Fixed interest rate |  |  |  |  |  |  |  |  |  |  | 6.37%
Interest Only payments Period |  | 12 months |  |  |  |  |  |  |  |  |
Principal and interest payments |  | 36 months |  |  |  |  |  |  |  |  |
Final payment fee for early repayment of credit facility |  |  |  |  |  |  |  |  |  | 50,000 |
Repayment of credit facility |  |  |  |  |  |  |  |  |  | 4,200,000 |
Commitment fee |  |  |  |  | 20,000 | 20,000 |  |  |  |  | 40,000
Loan fees |  |  |  |  |  |  |  |  |  |  | 50,000
Effective interest rate |  |  |  |  |  |  |  |  |  |  | 7.07%
Final payment fee percentage |  |  |  |  |  |  |  |  |  |  | 1.00%
Amount under RLOC available to the Company |  |  |  |  |  |  | 80.00% |  |  |  |
Outstanding amounts |  |  |  |  |  |  | 3,600,000 |  | 3,200,000 |  |
Lender's prime rate plus 1.50% |  |  |  |  |  |  |  | Lender's prime rate plus 1.50% |  |  |
Margin rate |  |  |  |  |  |  | 1.50% |  |  |  |
Floating rate of interest |  |  |  |  |  |  | 4.75% |  | 4.75% |  |
Frequency of commitment fee |  |  |  |  |  |  |  | Annually on June 30 |  |  |
Commitment fee at each annual anniversary beginning June 30, 2013 |  |  |  |  |  |  |  | 20,000 |  |  |
Minimum cash balance |  |  |  | $ 2,500,000 |  |  |  |  |  |  |
Minimum revenues levels percentage |  |  |  | 75.00% |  |  |  |  |  |  |

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- Definition Percentage applied to borrowings under the credit facility as a final payment fee. + References No definition available. + Details
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- Definition Percentage applied to pre-established future projected revenues for the trailing six-month period to ensure minimum revenue levels are achieved + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum amount borrowed under the credit facility at any time during the period. + References No definition available. + 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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