Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Facility (Details)

v3.5.0.2
Revolving Credit Facility (Details)
 3 Months Ended 6 Months Ended
Sep. 30, 2017
agreement
Sep. 01, 2017
agreement
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
agreement
Sep. 30, 2015
USD ($)
Mar. 31, 2016
USD ($)
Jun. 30, 2015
USD ($)
Revolving Credit Facility                
Restricted cash     $ 5,006,000   $ 5,006,000   $ 5,002,000  
Outstanding borrowings     6,178,000   6,178,000   $ 9,459,000  
Interest expense     129,000 $ 197,000 263,000 $ 347,000    
Amortization of deferred financing costs         $ 86,000 85,000    
Credit Facility                
Revolving Credit Facility                
Number of credit and security agreements | agreement         2      
Maximum borrowing capacity under facility     20,000,000   $ 20,000,000     $ 20,000,000
Previous maximum line of credit     15,000,000   15,000,000      
Minimum cash balance     $ 5,300,000   $ 5,300,000      
Variable base rate         Three month LIBOR      
Borrowing rate (as a percent)     4.60%   4.60%   4.40%  
Annual unused line fee (as a percent)         0.25%      
Interest rate with respect to letters of credit (as a percent)         1.50%      
Outstanding borrowings     $ 6,200,000   $ 6,200,000   $ 9,500,000  
Additional borrowing capacity under facility     12,200,000   12,200,000      
Interest expense     100,000 200,000 300,000 300,000    
Amortization of deferred financing costs     42,000 $ 42,000 100,000 $ 100,000    
Credit Facility | Forecast                
Revolving Credit Facility                
Number of credit and security agreements set to expire | agreement 1 1            
Credit Facility | Minimum                
Revolving Credit Facility                
Interest floor amount         66,000      
Non-revolving capital expenditure line of credit                
Revolving Credit Facility                
Maximum borrowing capacity under facility     $ 500,000   $ 500,000