Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Facility (Details)

v3.4.0.3
Revolving Credit Facility (Details) - Revolving credit agreement - USD ($)
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Long-term debt    
Maximum borrowing capacity $ 25,000,000  
Annual commitment fee 0.25%  
Long-term debt less current installments $ 7,500,000 $ 2,700,000
LIBOR    
Long-term debt    
Margin on variable rate 1.25%  
Effective interest rate 1.75% 1.75%