Annual report pursuant to Section 13 and 15(d)

Revolving Credit Facility (Details)

v2.4.0.6
Revolving Credit Facility (Details) (USD $)
 12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Revolving Credit Facility      
Outstanding borrowings $ 13,476,000 $ 10,431,000  
Interest expense 717,000 857,000 873,000
Amortization of deferred financing costs 148,000 169,000 193,000
Credit Facility
      
Revolving Credit Facility      
Credit and security agreements 2    
Maximum borrowing capacity under facility 15,000,000    
Minimum monthly requirement to maintain cash balance for outstanding line of credit 15,000,000    
Minimum covenant compliance period 12 months    
Variable base rate LIBOR    
Borrowing rate (as a percent) 5.40% 5.50%  
Origination fees 100,000    
Annual unused line fee (as a percent) 0.25%    
Interest rate with respect to letters of credit (as a percent) 1.50%    
Outstanding borrowings 13,500,000 10,400,000  
Additional borrowing capacity under facility 40,000    
Interest expense 700,000 800,000 800,000
Amortization of deferred financing costs 100,000 200,000 200,000
Credit Facility | Minimum
      
Revolving Credit Facility      
Interest floor amount $ 66,000