Long-Term Debt (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended		3 Months Ended		3 Months Ended
	Jul. 31, 2014 Wells Fargo Credit Agreement [Member] item	Jul. 31, 2014 Term Note A [Member]	Apr. 30, 2014 Term Note A [Member]	Jul. 31, 2014 Term Note B [Member]	Apr. 30, 2014 Term Note B [Member]	Jul. 31, 2014 Minimum [Member] Term Note A [Member]	Jul. 31, 2014 Maximum [Member] Term Note A [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 15,100,000
Number of term loans	2
Number of revolving lines of credit	1
Maturity date	Jun. 30, 2017
Term loan amount		10,072,000	11,324,000		1,000,000
Stated interest rate, minimum		5.00%		12.00%
Quarterly principal payment		$ 252,000
Reference rate		LIBOR
Basis spread on variable reference rate						3.50%	4.00%
Effective interest rate at period end		6.50%