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Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified
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3 Months Ended |
6 Months Ended |
|
Oct. 31, 2014
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Oct. 31, 2013
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Oct. 31, 2014
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Oct. 31, 2013
|
| Revenues |
$ 6,478us-gaap_SalesRevenueNet |
$ 7,330us-gaap_SalesRevenueNet |
$ 13,149us-gaap_SalesRevenueNet |
$ 14,104us-gaap_SalesRevenueNet |
| Cost of revenues |
4,149us-gaap_CostOfGoodsSold |
4,301us-gaap_CostOfGoodsSold |
8,371us-gaap_CostOfGoodsSold |
8,868us-gaap_CostOfGoodsSold |
| Gross margin |
2,329us-gaap_GrossProfit |
3,029us-gaap_GrossProfit |
4,778us-gaap_GrossProfit |
5,236us-gaap_GrossProfit |
| Selling, general and administrative expenses: |
|
|
|
|
| Research and development expense |
550us-gaap_ResearchAndDevelopmentExpense |
498us-gaap_ResearchAndDevelopmentExpense |
1,079us-gaap_ResearchAndDevelopmentExpense |
924us-gaap_ResearchAndDevelopmentExpense |
| Selling and marketing expense |
696us-gaap_SellingAndMarketingExpense |
659us-gaap_SellingAndMarketingExpense |
1,316us-gaap_SellingAndMarketingExpense |
1,166us-gaap_SellingAndMarketingExpense |
| General and administrative expense |
896us-gaap_GeneralAndAdministrativeExpense |
756us-gaap_GeneralAndAdministrativeExpense |
1,735us-gaap_GeneralAndAdministrativeExpense |
1,577us-gaap_GeneralAndAdministrativeExpense |
| Total selling, general and administrative expenses |
2,142us-gaap_SellingGeneralAndAdministrativeExpense |
1,913us-gaap_SellingGeneralAndAdministrativeExpense |
4,130us-gaap_SellingGeneralAndAdministrativeExpense |
3,667us-gaap_SellingGeneralAndAdministrativeExpense |
| Operating income |
187us-gaap_OperatingIncomeLoss |
1,116us-gaap_OperatingIncomeLoss |
648us-gaap_OperatingIncomeLoss |
1,569us-gaap_OperatingIncomeLoss |
| Interest expense |
(13)us-gaap_InterestExpense |
(14)us-gaap_InterestExpense |
(27)us-gaap_InterestExpense |
(28)us-gaap_InterestExpense |
| Other income, net |
|
(3)us-gaap_OtherNonoperatingIncomeExpense |
|
(4)us-gaap_OtherNonoperatingIncomeExpense |
|
(13)us-gaap_NonoperatingIncomeExpense |
(17)us-gaap_NonoperatingIncomeExpense |
(27)us-gaap_NonoperatingIncomeExpense |
(32)us-gaap_NonoperatingIncomeExpense |
| Net income before income tax expense |
174us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
1,099us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
621us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
1,537us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
| Income tax expense |
94us-gaap_IncomeTaxExpenseBenefit |
446us-gaap_IncomeTaxExpenseBenefit |
268us-gaap_IncomeTaxExpenseBenefit |
620us-gaap_IncomeTaxExpenseBenefit |
| Net income |
$ 80us-gaap_NetIncomeLoss |
$ 653us-gaap_NetIncomeLoss |
$ 353us-gaap_NetIncomeLoss |
$ 917us-gaap_NetIncomeLoss |
| Basic (in Dollars per share) |
$ 0.02us-gaap_EarningsPerShareBasic |
$ 0.17us-gaap_EarningsPerShareBasic |
$ 0.09us-gaap_EarningsPerShareBasic |
$ 0.24us-gaap_EarningsPerShareBasic |
| Diluted (in Dollars per share) |
$ 0.02us-gaap_EarningsPerShareDiluted |
$ 0.17us-gaap_EarningsPerShareDiluted |
$ 0.09us-gaap_EarningsPerShareDiluted |
$ 0.23us-gaap_EarningsPerShareDiluted |
| Basic (in Shares) |
3,827us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
3,860us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
3,826us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
3,877us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
| Diluted (in Shares) |
3,964us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
3,937us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
3,969us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
3,942us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |