Quarterly report pursuant to Section 13 or 15(d)

Liquidity (Detail)

v3.2.0.727
Liquidity (Detail) - USD ($)
Jun. 30, 2015
Mar. 31, 2015
Liquidity [Line Items]    
Cash and cash equivalents $ 6,380,000  
Revolving line of credit    
Liquidity [Line Items]    
Term loan 3,000,000  
Revolving line of credit | Third Amended and Restated Loan and Security Agreement    
Liquidity [Line Items]    
Maximum borrowing capacity 5,000,000  
Senior Debt    
Liquidity [Line Items]    
Term loan 450,000  
Revolving Credit Facility    
Liquidity [Line Items]    
Outstanding revolving credit facility $ 3,000,000  
Primary Securities | Shelf Registration    
Liquidity [Line Items]    
Primary securities for shelf registration covering amount   $ 100,000,000