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Long Term Debt (Details) - Credit Agreement - Revolving Credit Facility
Oct. 12, 2015
USD ($)
Debt Instrument [Line Items]  
Maximum borrowing capacity (up to) $ 50,000,000.0
Uncommitted incremental facility (up to) 35,000,000.0
Debt issuance costs $ 500,000
Amortization period for interest expense 3 years
London Interbank Offered Rate (LIBOR) | Minimum  
Debt Instrument [Line Items]  
Basis spread on variable rate 1.50%
London Interbank Offered Rate (LIBOR) | Maximum  
Debt Instrument [Line Items]  
Basis spread on variable rate 2.25%