Income Taxes (Tables)

12 Months Ended

Apr. 30, 2013

Income Taxes [Abstract]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2013			2012
Computed tax expense (benefit) at statutory rates	$	341,000		$	(5,000	)
Permanent differences	3,000			11,000
State tax, credits, and other	57,000			5,000
Increase (decrease) in valuation allowance	(619,000		)	(11,000		)
	$	(218,000	)	$	—

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	2013			2012
Current tax expense	$	14,000		$	—
Deferred tax benefit	(232,000		)	—
	$	(218,000	)	$	—

Summary of Operating Loss Carryforwards [Table Text Block]

Year of Expiration	NOL Carryforwards
2019	$	2,247,000
2022	32,000
2023	1,000
2024	77,000
2026	253,000
2027	217,000
2029	28,000
2032	366,000
	$	3,221,000

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2013		2012
Net operating loss carryforwards	$	1,095,000	$	1,359,000
Inventory valuation reserve	146,000		150,000
Amortization and impairment of intangibles	175,000		271,000
Loss on equity and impairment in investee	427,000		427,000
Tax credit carryforwards	130,000		143,000
Other	81,000		91,000
	2,054,000		2,441,000
Less: valuation allowance	1,214,000		1,833,000
	$	840,000	$	608,000

Schedule of Current and Noncurrent Deferred Income Tax [Table Text Block]

	2013		2012
Current deferred income tax asset	$	183,000	$	116,000
Noncurrent deferred income tax asset	657,000		492,000
	$	840,000	$	608,000