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Notes Payable - Additional Information (Detail) (USD $)
6 Months Ended
Jul. 31, 2013
Senior Secured Note [Line Items]  
Payment of financing costs, fair value of restricted shares $ 45,000
Senior notes 500,000
Revolving Credit Facility
 
Senior Secured Note [Line Items]  
Debt, maturity date Jun. 30, 2014
Revolving line of credit carrying amount 100,000
Line of credit facility amount outstanding $ 94,765
Line of credit facility, interest rate description prime rate (as defined) plus 4.50%
Line of credit facility, interest rate at period end 7.75%
Line of credit facility, expiration date Jul. 31, 2013
Line of credit facility, frequency of payment and payment terms interest only is payable monthly, and matures June 5, 2014.
Senior secured note | Interest payable in arrears period on December 28, 2012
 
Senior Secured Note [Line Items]  
Debt, interest rate 8.00%
Senior secured note | Interest payable in arrears period on March 31, 2013
 
Senior Secured Note [Line Items]  
Debt, interest rate 8.00%
Senior secured note | Interest payable in arrears period on June 30, 2013
 
Senior Secured Note [Line Items]  
Debt, interest rate 8.00%
Senior secured note | Interest payable in arrears period on October 15, 2013
 
Senior Secured Note [Line Items]  
Debt, interest rate 8.00%
Senior secured note | Amended | SpaGus
 
Senior Secured Note [Line Items]  
Debt, maturity date Oct. 15, 2013
Payment of financing costs, restricted shares 100,000
Senior secured note | Amended | Possibility one | SpaGus
 
Senior Secured Note [Line Items]  
Debt, maturity date Sep. 29, 2013
Senior secured note | Amended | Date One | SpaGus
 
Senior Secured Note [Line Items]  
Debt, accrued interest payable date Dec. 28, 2012
Senior secured note | Amended | Date Two | SpaGus
 
Senior Secured Note [Line Items]  
Debt, accrued interest payable date Mar. 31, 2013
Senior secured note | Amended | Date Three | SpaGus
 
Senior Secured Note [Line Items]  
Debt, accrued interest payable date Jun. 30, 2013
Senior secured note | Amended | Date four | SpaGus
 
Senior Secured Note [Line Items]  
Debt, accrued interest payable date Oct. 15, 2013