v2.4.0.8
Revolving Credit Loans - Additional Information (Detail) (USD $)
9 Months Ended 3 Months Ended
Sep. 27, 2014
Apr. 12, 2013
Sep. 27, 2014
Display Model LOC [Member]
Sep. 10, 2013
Display Model LOC [Member]
Sep. 27, 2014
Working Capital LOC [Member]
Sep. 10, 2013
Working Capital LOC [Member]
Debt Instrument [Line Items]            
Revolving line of credit loan and security agreement $ 8,000,000 $ 2,500,000   $ 5,000,000   $ 3,000,000
Term of credit facility     2 years   2 years  
Variable interest rate above LIBOR     4.00%   2.50%  
Revolving line of credit loan and security agreement     4.1558%   2.657%  
Revolving credit loan outstanding balance     0   700,000  
Revolving credit loans available 3,479,453          
Letters of credit, outstanding 65,000          
Amount drawn by the beneficiaries on irrevocable letters of credit $ 0