Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Facility (Details)

v3.3.0.814
Revolving Credit Facility (Details)
 3 Months Ended 6 Months Ended
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
item
Sep. 30, 2014
USD ($)
Mar. 31, 2015
USD ($)
Revolving Credit Facility          
Restricted cash $ 5,000,000   $ 5,000,000    
Outstanding borrowings 15,164,000   15,164,000   $ 12,953,000
Interest expense 197,000 $ 144,000 347,000 $ 287,000  
Amortization of deferred financing costs     $ 85,000 112,000  
Credit Facility          
Revolving Credit Facility          
Credit and security agreements | item     2    
Maximum borrowing capacity under facility 20,000,000 15,000,000 $ 20,000,000 15,000,000  
Minimum cash balance 12,900,000   $ 12,900,000    
Variable base rate     daily three month London Inter–Bank Offer Rate ("LIBOR    
Annual unused line fee (as a percent)     0.25%    
Interest rate with respect to letters of credit (as a percent)     1.50%    
Outstanding borrowings 15,200,000   $ 15,200,000   $ 13,000,000
Interest expense 200,000 100,000 300,000 300,000  
Amortization of deferred financing costs 42,000 $ 56,000 100,000 $ 100,000  
Credit Facility | Minimum          
Revolving Credit Facility          
Interest floor amount     66,000    
Non-revolving capital expense line of credit          
Revolving Credit Facility          
Maximum borrowing capacity under facility $ 500,000   $ 500,000