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Debt - Additional Information (Detail) (USD $)		3 Months Ended		3 Months Ended	1 Months Ended	6 Months Ended	9 Months Ended			1 Months Ended
	Jun. 30, 2012 Securities Pledged as Collateral	Mar. 31, 2013 Comerica - Growth Capital Facility	Jun. 30, 2012 Comerica - Growth Capital Facility	Mar. 31, 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, 2012 Revolving Credit Facility Comerica - Growth Capital Facility	Mar. 31, 2013 Revolving Credit Facility Comerica - Growth Capital Facility	Dec. 31, 2012 Revolving Credit Facility Comerica - Growth Capital Facility	Sep. 30, 2011 Capital Loan Comerica - Growth Capital Facility	Apr. 30, 2013 Capital Loan Comerica - Growth Capital Facility Settlement of Debt
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
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								2,800,000	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 eligible trade receivables to calculate amount of revolving line of credit available to the Company.

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Line of credit facility interest payment period.

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Line of credit facility withdrawals.

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Minimum cash balance.

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Percentage applied to pre-established future projected revenues for the trailing six-month period to ensure minimum revenue levels are achieved

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Percentage of investments made in subsidiary.

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The percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Interest rate stated in the contractual debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount borrowed under the credit facility as of the balance sheet date.

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Amount of the fee for available but unused credit capacity under the credit facility.

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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.

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