Financing Agreements (Tables)

9 Months Ended

Jan. 31, 2013

Financing Agreements [Abstract]

Schedule of Debt [Table Text Block]

	Line of Credit			Mortgage note payable to Commerce Bank			Equipment loan note payable to Commerce Bank
Face amount	$	500,000		$	650,000		$	500,000
Proceeds received	—			650,000			380,000
Unused borrowing capacity	500,000			—			120,000
Amount previously repaid	—			74,000			166,000
Total debt outstanding	$	—		$	576,000		$	214,000
Rate	4.00		%	4.63		%	4.63		%
Maturity date	September 27, 2013			September 26, 2015			September 26, 2015
Monthly payment	$	—		$	5,038		$	7,123
Additional Criteria	Borrowing base limited to 75% of eligible receivables			15 year amortization schedule			Advance rate equal to 80% of the price of the equipment purchased