Revolving Credit Facility (Narrative) (Details) - USD ($)		3 Months Ended
	Dec. 17, 2015	Jun. 30, 2016
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 15,000,000
Credit facility, amount outstanding		$ 0
Debt instrument, description of variable rate basis		prime rate or LIBOR plus 2.5%
Line of credit facility, unused capacity, commitment fee percentage		0.25%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		2.50%
Revolving Credit Facility B [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 30,000,000
Credit facility, amount outstanding		$ 30,000,000
Debt instrument, description of variable rate basis		prime rate or LIBOR plus 3.00%
Line of credit facility, unused capacity, commitment fee percentage		0.25%
Line of credit facility, commitment fee amount	$ 75,000
Revolving Credit Facility B [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		3.00%
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 5,000,000
Line of credit facility, commitment fee percentage		1.00%