Financing Agreements (Tables)

12 Months Ended

Apr. 30, 2012

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	—			49,000			111,000
Total debt outstanding	$	—		$	601,000		$	269,000
Rate	4.00		%	4.63		%	4.63		%
Maturity date	September 26, 2012			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

Schedule of Long-term Debt Instruments [Table Text Block]

	2012		2011
Mortgage note payable to Commerce Bank, maturing September 2015	$	601,000	$	632,000
Equipment loan note payable to Commerce Bank, maturing September 2015	269,000		340,000
Capital lease obligations	75,000		52,000
	945,000		1,024,000
Less: Current maturities	150,000		125,000
	$	795,000	$	899,000

Schedule of Maturities of Long-term Debt [Table Text Block]

Year Ending April 30,	Amount
2013	$	150,000
2014	140,000
2015	123,000
2016	532,000
	$	945,000