Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

v3.2.0.727
Long-Term Debt (Details)
3 Months Ended
Jun. 11, 2014
Jun. 10, 2014
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Mar. 31, 2015
USD ($)
Debt Instrument [Line Items]          
Long-term Debt         $ 108,000,000
Less current portion     $ (13,500,000)   (13,500,000)
Long-term debt, noncurrent     $ 91,125,000   94,500,000
Issuance costs associated with revolving line of credit and long term debt       $ 290,000  
Senior Notes [Member]          
Debt Instrument [Line Items]          
Debt Instrument, interest rate, stated percentage     2.1875%    
Loans Payable          
Debt Instrument [Line Items]          
Long-term Debt     $ 104,625,000    
Variable Rate Term Loan, due April 2019         $ 108,000,000
Debt Instrument, interest rate, stated percentage     2.1875%    
Revolving credit facility          
Debt Instrument [Line Items]          
Maximum borrowing capacity     $ 60,000,000    
Debt instrument, interest rate, decrease (percentage) 0.25%        
Line of credit facility, decrease in periodic payment (as a percentage) 0.05%        
Maximum leverage ratio 2.75 2.25      
Annual commitment fee on unutilized commitments (as a percent)     0.30%    
Line of credit facility, commitment fee percentage     0.125%    
Outstanding borrowings     $ 0    
Capacity available under credit facility     $ 59,251,000    
Interest rate at period end (as a percent)     2.1875%    
London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Interest rate in addition to LIBOR rate     1.00%    
Canadian Deposit Offer Rate          
Debt Instrument [Line Items]          
Interest rate in addition to LIBOR rate     1.00%    
Minimum | Base Rate          
Debt Instrument [Line Items]          
Interest rate in addition to LIBOR rate     0.50%    
Maximum | Base Rate          
Debt Instrument [Line Items]          
Interest rate in addition to LIBOR rate     1.00%    
Through March 31, 2017 | Loans Payable          
Debt Instrument [Line Items]          
Repayments of Notes Payable     $ 1,125,000    
Last Two Years Of Loan | Loans Payable          
Debt Instrument [Line Items]          
Repayments of Notes Payable     1,688,000    
Due in April 2019 | Loans Payable          
Debt Instrument [Line Items]          
Repayments of Notes Payable     $ 40,500,000