Elecsys 10-Q 10 Mar 14 2014 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Jan. 31, 2014	Mar. 03, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'ELECSYS CORP	'
Document Type	'10-Q	'
Current Fiscal Year End Date	'--04-30	'
Entity Common Stock, Shares Outstanding	'	3,817,168
Amendment Flag	'false	'
Entity Central Index Key	'0000914398	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Well-known Seasoned Issuer	'No	'
Document Period End Date	31-Jan-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Revenues	$7,683	$7,458	$21,787	$17,853
Cost of revenues	4,761	4,655	13,629	11,250
Gross margin	2,922	2,803	8,158	6,603
Selling, general and administrative expenses:	'	'	'	'
Research and development expense	475	411	1,398	1,245
Selling and marketing expense	760	529	1,927	1,636
General and administrative expense	796	717	2,373	2,105
Total selling, general and administrative expenses	2,031	1,657	5,698	4,986
Operating income	891	1,146	2,460	1,617
Financial income (expense):	'	'	'	'
Interest expense	-14	-15	-43	-51
Other income, net	-1	-2	-4	-3
	-15	-17	-47	-54
Net income before income tax expense	876	1,129	2,413	1,563
Income tax expense	307	413	927	595
Net income	$569	$716	$1,486	$968
Net income per share information:	'	'	'	'
Basic (in Dollars per share)	$0.15	$0.18	$0.39	$0.25
Diluted (in Dollars per share)	$0.14	$0.18	$0.38	$0.25
Weighted average common shares outstanding:	'	'	'	'
Basic (in Shares)	3,814	3,914	3,856	3,895
Diluted (in Shares)	3,953	3,925	3,947	3,904

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Jan. 31, 2014	Apr. 30, 2013
ASSETS	'	'
Cash and cash equivalents	$250,000	$1,464,000
Accounts receivable, less allowances of $78 and $35, respectively	3,090,000	2,538,000
Inventories, net	7,840,000	6,238,000
Prepaid expenses	143,000	61,000
Income tax receivable	'	106,000
Deferred taxes	744,000	689,000
Total current assets	12,067,000	11,096,000
Property and equipment:	'	'
Land	1,737,000	1,737,000
Building and improvements	3,395,000	3,395,000
Equipment	4,109,000	3,696,000
Total property and equipment, gross	9,241,000	8,828,000
Accumulated depreciation	-3,704,000	-3,429,000
Total property and equipment, net	5,537,000	5,399,000
Goodwill	1,942,000	1,942,000
Intangible assets, net	1,534,000	1,685,000
Other assets, net	44,000	47,000
Total assets	21,124,000	20,169,000
Accounts payable	1,281,000	1,390,000
Accrued expenses	1,425,000	1,408,000
Income taxes payable	242,000	1,000
Current maturities of long-term debt	188,000	185,000
Total current liabilities	3,136,000	2,984,000
Deferred taxes	593,000	637,000
Long-term debt, less current maturities	2,478,000	2,619,000
Preferred stock, $.01 par value, 5,000,000 shares authorized; issued and outstanding – none	'	'
Common stock, $.01 par value, 10,000,000 shares authorized; issued and outstanding – 3,817,068 at January 31, 2014 and 3,897,832 at April 30, 2013	40,000	40,000
Additional paid-in capital	11,634,000	11,429,000
Treasury stock, at cost; 158,181 shares at January 31, 2014 and 59,414 shares at April 30, 2013	-985,000	-282,000
Retained earnings	4,228,000	2,742,000
Total stockholders' equity	14,917,000	13,929,000
Total liabilities and stockholders' equity	$21,124,000	$20,169,000

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Jan. 31, 2014	Apr. 30, 2013
In Thousands, except Per Share data, unless otherwise specified
Accounts receivable, allowances (in Dollars)	$78	$35
Preferred stock, par value (in Dollars per share)	$0.01	$0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$0.01	$0.01
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,817,068	3,897,832
Common stock, shares outstanding	3,817,068	3,897,832
Treasury stock, shares	158,181	59,414

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
In Thousands, except Share data
Balance at Apr. 30, 2012	$39	$11,166	'	$1,059	$12,264
Balance (in Shares) at Apr. 30, 2012	3,884,000	'	'	'	'
Net income (loss)	'	'	'	1,683	1,683
Exercise of stock options	1	152	'	'	153
Exercise of stock options (in Shares)	70,000	'	'	'	'
Issue of restricted stock (in Shares)	3,000	'	'	'	'
Stock repurchases	'	'	-282	'	-282
Stock repurchases (in Shares)	-59,000	'	'	'	'
Share-based compensation expense	'	111	'	'	111
Balance at Apr. 30, 2013	40	11,429	-282	2,742	13,929
Balance (in Shares) at Apr. 30, 2013	3,898,000	'	'	'	'
Net income (loss)	'	'	'	1,486	1,486
Exercise of stock options	'	63	'	'	63
Exercise of stock options (in Shares)	14,000	'	'	'	13,533
Issue of restricted stock (in Shares)	4,000	'	'	'	'
Stock repurchases	'	'	-703	'	-703
Stock repurchases (in Shares)	-99,000	'	'	'	'
Share-based compensation expense	'	142	'	'	142
Balance at Jan. 31, 2014	$40	$11,634	($985)	$4,228	$14,917
Balance (in Shares) at Jan. 31, 2014	3,817,000	'	'	'	'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Cash Flows from Operating Activities:	'	'
Net income	$1,486,000	$968,000
Adjustments to reconcile net income to net cash (used in) provided by operating activities:	'	'
Share-based compensation expense	142,000	89,000
Depreciation	290,000	258,000
Amortization	154,000	154,000
Provision for doubtful accounts	45,000	23,000
Deferred income taxes	-99,000	93,000
Changes in operating assets and liabilities:	'	'
Accounts receivable	-597,000	-798,000
Inventories	-1,602,000	167,000
Income tax payable/receivable	347,000	120,000
Accounts payable	-109,000	310,000
Accrued expenses	17,000	-225,000
Other	-82,000	-90,000
Net cash (used in) provided by operating activities	-8,000	1,069,000
Cash Flows from Investing Activities:	'	'
Purchases of property and equipment	-428,000	-214,000
Net cash (used in) investing activities	-428,000	-214,000
Cash Flows from Financing Activities:	'	'
Principal payments on note payable to bank	'	-750,000
Purchases of common stock for repurchase program	-703,000	-140,000
Proceeds from the exercise of stock options	63,000	59,000
Principal payments on long-term debt	-138,000	-136,000
Net cash (used in) financing activities	-778,000	-967,000
Net (decrease) in cash and cash equivalents	-1,214,000	-112,000
Cash and cash equivalents at beginning of period	1,464,000	136,000
Cash and cash equivalents at end of period	250,000	24,000
Supplemental Disclosure of Cash Flow Information:	'	'
Cash paid during the period for interest	43,000	53,000
Cash paid during the period for income taxes	$679,000	$382,000

Note_1_Nature_of_Operations_an

Note 1 - Nature of Operations and Summary of Significant Accounting Policies	9 Months Ended
	Jan. 31, 2014
Accounting Policies [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	'
	1.           NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT
	ACCOUNTING POLICIES
	Nature of Operations
	Elecsys Corporation (“the Company”) provides innovative machine to machine (“M2M”) communication technology solutions, data acquisition and management systems, and custom electronic equipment for critical industrial applications worldwide. The Company’s primary markets include energy production and distribution, agriculture, transportation, safety and security systems, and water management.  The Company’s products and services encompass remote monitoring, industrial data communication, mobile data acquisition, and wireless communication technologies that are deployed wherever high quality and reliability are essential. The Company develops, manufactures, and supports proprietary M2M technology and products for multiple markets and applications under several premium brand names.  In addition to its proprietary products, the Company designs and manufactures rugged and reliable custom solutions for original equipment manufacturers (“OEMs”) in a variety of industries.
	The Company’s sales are made to customers within the United States and several international markets.
	Principles of Consolidation
	The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Elecsys International Corporation.  All significant intercompany balances and transactions have been eliminated in consolidation.
	Comprehensive Income
	The Company has no components of other comprehensive income, therefore comprehensive income equals net income.
	Fair Value of Financial Instruments
	The carrying amount of financial instruments, including cash, accounts receivable, accounts payable, and the current portion of long-term debt approximates fair value because of the short-term nature of these items.
	The carrying value of the Company’s long-term debt approximates fair value as the Industrial Revenue Bonds include a variable interest rate component.
	Recent Accounting Pronouncements
	There have been no recent accounting pronouncements or changes in accounting pronouncements during the nine-month period ended January 31, 2014, which are of material significance, or have potential material significance, to the Company.
	Revenue Recognition
	The Company derives revenue from the manufacture of production units of electronic assemblies, liquid crystal displays, and its proprietary products including its remote monitoring equipment, RFID technology and solutions and its mobile computing products.  The Company also derives revenue from repairs and non-warranty services, engineering design services, remote monitoring services and maintenance contracts.  Production and repaired units are billed to the customer when they are shipped.  Remote monitoring services and maintenance contracts are billed and the revenue recognized at the end of the month the services are provided or maintenance periods are completed.  Customers that utilize the Company’s engineering design services are billed and revenue is recognized when the design services or tooling have been completed.  The Company requires its customers to provide a binding purchase order to verify the manufacturing services to be provided.  Typically, the Company does not have any post-shipment obligations, including customer acceptance requirements.  The Company does provide training and installation services to its customers and those services are billed and the revenue recognized at the end of the month the services are completed.  Revenue recognized is net of any sales taxes, tariffs, or duties remitted to any governmental authority.
	Accounts Receivable
	Accounts receivable are carried at original invoice amount less an estimate made for doubtful receivables based on a review of all outstanding amounts on a monthly basis. Management determines the allowance for doubtful accounts by regularly evaluating individual customer receivables, considering a customer’s financial condition and credit history, as well as current economic conditions. Receivables are written off when deemed uncollectible. Recoveries of receivables previously written off are recorded when received.  The majority of the customer accounts are considered past due after the invoice becomes older than the customer’s credit terms (30 days for the majority of customers).  Interest is not charged on past due accounts for the majority of the Company’s customers.
	Inventories
	Inventories are stated at the lower of cost, using the first-in, first-out (FIFO) method, or fair value.  The Company’s industry is characterized by rapid technological change, short-term customer commitments and rapid changes in demand, as well as other market considerations.  Provisions for estimated excess and obsolete inventory are based on quarterly reviews of inventory quantities on hand and the latest forecasts of product demand and production requirements from customers.  Inventories are reviewed in detail on a quarterly basis utilizing multiple annual time horizons ranging from 24-months to 60-months.  Individual part numbers that have not been used in each of the time horizons are examined by manufacturing personnel for obsolescence, excess and fair value.  Parts that are not identified for common use or are unique to a former customer or application are categorized as obsolete and are included in the provision for estimated excess and obsolete inventory.  If actual market conditions or customers’ product demands are less favorable than those projected, additional inventory write-downs may be required.
	Property and Equipment
	Property and equipment are recorded at cost.  Depreciation is computed using the straight-line method over the following estimated useful lives:
	Description		Years
	Building and improvements		39
	Equipment	3	-	8
	Goodwill
	Goodwill is initially measured as the excess of the cost of an acquired business over the fair value of the identifiable net assets acquired.  The Company does not amortize goodwill, but rather reviews its carrying value for impairment annually (January 31) and whenever an impairment indicator is identified.  The goodwill impairment test involves a two-step approach.  The first step is to identify whether potential impairment of goodwill exists. If impairment of goodwill is determined to exist, the second step of the goodwill impairment test measures the amount of the impairment using a fair value-based approach.  No impairment indicators were identified as of January 31, 2014.
	Intangible Assets
	Intangible assets consist of patents, trademarks, copyrights, customer relationships and capitalized software.  Intangible assets are amortized over their estimated useful lives using the straight-line method.  The useful lives of the Company’s intangible assets range from 5 – 15 years.
	Impairment of Long-Lived Intangible Assets
	Long-lived assets, including amortizable intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be fully recoverable. These events or changes in circumstances may include a significant deterioration of operating results, changes in business plans, or changes in anticipated future cash flows. If an impairment indicator is present, the Company evaluates recoverability by a comparison of the carrying amount of the assets to future undiscounted cash flows expected to be generated by the assets.  If the sum of the expected future undiscounted cash flows is less than the carrying amount, the Company would recognize an impairment loss. An impairment loss would be measured by comparing the amount by which the carrying value exceeds the fair value of the long-lived assets and intangibles.
	Income Taxes
	The Company accounts for income taxes in accordance with ASC Topic 740, Income Taxes.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to the differences between the tax bases of assets and liabilities and their carrying amount for financial reporting purposes, as measured by the enacted tax rates which will be in effect when these differences are expected to reverse.  The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.  In assessing the realizability of deferred income tax assets, the Company considers whether it is “more likely than not,” according to the criteria of ASC Topic 740, that some portion or all of the deferred income tax assets will be realized.  The ultimate realization of deferred income tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible.  ASC Topic 740 requires that the Company recognize the financial statement benefit of a tax position only after determining that the relevant tax authority would more likely than not sustain the position following an audit.
	For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority.
	Warranty Reserve
	The Company has established a warranty reserve for rework, product warranties and customer refunds.  The Company provides a limited warranty for a period of one year from the date of receipt of products by customers and the Company offers extended warranties for additional purchase by its customers.  The standard warranties require the Company to repair or replace defective products at no cost to the customer or refund the customer’s purchase price.  The warranty reserve is based on historical experience and analysis of specific known and potential warranty issues.  The product warranty liability reflects management’s best estimate of probable liability under the product warranties.
	Shipping and Handling Costs
	Shipping and handling costs that are billed to our customers are recognized as revenues in the period that the product is shipped.  Shipping and handling costs that are incurred by the Company are recognized as cost of sales in the period that the product is shipped.
	Subsequent Events
	The Company evaluates all subsequent events and transactions for potential recognition or disclosure in its financial statements.  There are no matters which require disclosure.

Note_2_Basis_of_Presentation

Note 2 - Basis of Presentation	9 Months Ended
	Jan. 31, 2014
Disclosure Text Block [Abstract]	'
Basis of Accounting [Text Block]	'
	2.           BASIS OF PRESENTATION
	The accompanying unaudited condensed consolidated financial statements of the Company include the accounts of the Company and its wholly owned subsidiary, Elecsys International Corporation.  All significant intercompany balances and transactions have been eliminated.  The condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles in the United States for complete financial statements.  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.  Operating results for the three-month and nine-month periods ended January 31, 2014 are not necessarily indicative of the results that may be expected for the year ending April 30, 2014.
	The balance sheet at April 30, 2013 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles in the United States for complete financial statements.
	For further information, refer to the consolidated financial statements and footnotes included in the Company’ annual report on Form 10-K for the year ended April 30, 2013.

Note_3_Intangible_Assets_and_G

Note 3 - Intangible Assets and Goodwill	9 Months Ended
	Jan. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets Disclosure [Text Block]	'
	3.           INTANGIBLE ASSETS AND GOODWILL
	The Company’s total intangible assets consist of the following (in thousands):
						31-Jan-14					30-Apr-13
	Intangible Asset Description	Estimated				Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
		Useful
		Lives
	Patents, trademarks and copyrights		10	–	15	$	852	$	(456	)	$	852	$	(404	)
	Customer relationships		5	–	15		1,040		(496	)		1,040		(449	)
	Trade name			15			530		(227	)		530		(200	)
	Technologies		13	–	15		475		(184	)		475		(159	)
						$	2,897	$	(1,363	)	$	2,897	$	(1,212	)
	Amortization expense for the nine-month periods ended January 31, 2014 and 2013 was approximately $154,000 in each respective period.
	Estimated amortization expense for the next five fiscal years ending April 30 is as follows (in thousands):
	Year	Amounts
	2014 (remaining)	$	51
	2015		187
	2016		166
	2017		166
	2018		90
	The carrying amount of the Company’s goodwill at January 31, 2014 and April 30, 2013 was approximately $1,942,000.  There were no changes in the carrying amount of goodwill for the nine-month period ended January 31, 2014.
	The Company has evaluated the performance related contingent consideration provisions of the asset purchase agreement for its MBBS, S.A. (“MBBS”) acquisition in fiscal year 2010.  As of January 31, 2014, the Company has determined that based on the terms of the agreement and current projections, no contingent consideration is expected to be due in the MBBS transaction.

Note_4_Inventory

Note 4 - Inventory	9 Months Ended
	Jan. 31, 2014
Inventory Disclosure [Abstract]	'
Inventory Disclosure [Text Block]	'
	4.           INVENTORY
	Inventories are stated at the lower of cost or fair value, using the first-in, first-out (FIFO) method.  Inventories are summarized by major classification as follows (in thousands):
		31-Jan-14			30-Apr-13
	Raw material	$	3,838		$	3,077
	Work-in-process		1,612			1,409
	Finished goods		2,992			2,434
			8,442			6,920
	Reserves		(602	)		(682	)
		$	7,840		$	6,238

Note_5_Stockholders_Equity

Note 5 - Stockholders' Equity	9 Months Ended
	Jan. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	5.           STOCKHOLDERS’ EQUITY
	Stock Repurchase Plan
	On December 17, 2012, the Company announced a share repurchase program by which the Company planned to repurchase up to 10% of the Company’s outstanding common shares, or approximately 400,000 shares, from time to time at prevailing market prices through the open market or privately negotiated transactions.  The program has no expiration date and purchases are funded from available cash resources.
	For accounting purposes, the common stock repurchased under the Repurchase Plan is recorded based upon the settlement date of the applicable trade.  Such repurchased shares are held in treasury and are presented using the cost method.
	For the three-month period ended January 31, 2014, the Company repurchased 27,407 shares at a cost of approximately $220,000 (average cost of $8.03 per share).  For the nine-month period ended January 31, 2014, the Company repurchased 98,767 shares at a cost of approximately $703,000 (average cost of $7.14 per share).
	Stock-Based Compensation
	At January 31, 2014, the Company had two equity-based compensation plans from which stock-based compensation awards are granted to eligible employees and consultants of the Company.  These stock-based compensation plans include the: (i) 1991 Stock Option Plan (the “1991 Plan”) and (ii) 2010 Equity Incentive Plan (the “2010 Plan”).
	According to the terms of the Company’s original 1991 stock option plan for which the Company originally reserved 675,000 shares of common stock, both incentive stock options and non-qualified stock options to purchase common stock of the Company may be granted to key employees, directors and consultants to the Company, at the discretion of the Board of Directors. Incentive stock options were not granted at prices that were less than the fair market value on the date of grant.  Non-qualified options may be granted at prices determined appropriate by the Board of Directors of the Company, but have not been granted at less than the fair market value on the date of grant.  Generally, these options become exercisable and vest over one to five years and expire within 10 years of the date of grant.  The 1991 Plan also provides for accelerated vesting if there is a change in control of the Company.  As of January 31, 2014, there were options remaining outstanding to acquire 93,000 shares of common stock under the 1991 Plan.
	The 2010 Plan is an omnibus plan that allows for equity awards including stock options (including incentive stock options and non-qualified options), stock appreciation rights, restricted shares, restricted share units, performance shares, performance units, and other equity-based awards payable in cash or stock to officers, directors, key employees and other service providers.  Under the 2010 Plan, the Company has the ability to grant up to 380,000 shares of common stock.  The number of shares granted to eligible participants will be determined by the Board of Directors on an annual basis based on Company and individual performance and a Compensation Committee analysis.  The awards under the 2010 Plan will include vesting provisions that will require participants (other than non-employee directors) to remain at the Company for a defined period of time.  Options and stock appreciation rights will expire 10 years after the grant date.  The 2010 Plan also includes a change of control provision which allows for accelerated vesting if there is a change of control of the Company.  As of January 31, 2014, there were options outstanding to acquire 167,967 shares of common stock and 11,146 shares of common stock awards granted under the 2010 Plan and still subject to restriction.
	The Company accounts for its stock-based compensation plan in accordance with ASC Topic 718, Compensation-Stock Compensation.  ASC Topic 718 requires the measurement and recognition of compensation expense for all stock-based payment awards based on estimated fair value.  It further requires companies to estimate the fair value of stock-based payment awards on the date of the grant using an option pricing model.  The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods.
	The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model, which uses the following weighted-average assumptions for the nine-month periods ended January 31, 2014 and 2013:
			Nine Months				Nine Months
			Ended				Ended
			31-Jan-14				31-Jan-13
	Risk-free interest rate			2.97%				2.97%
	Expected life, in years			6				6
	Expected volatility		82.59	–	83.23%		65.52	–	80.48%
	Dividend yield			0.00%				0.00%
	Forfeiture rate			11.40%				9.20%
	The Company uses historical data to estimate option exercises and employee terminations used in the model.  Expected volatility is based on monthly historical fluctuations of the Company’s common stock using the closing market value for the number of months of the expected term immediately preceding the grant.  The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of the grant for a bond with a similar term.
	The Company receives a tax deduction for certain stock option exercises and disqualifying stock dispositions generally for the excess of the price at which the options are sold over the exercise prices of the options.  In accordance with ASC Topic 718, the Company reports any tax benefit from the exercise of stock options as financing cash flows.  For the nine-month period ended January 31, 2014, exercises of stock options triggered tax benefits totaling approximately $61,000.  There were no exercises of stock options which triggered tax benefits for the nine-month period ended January 31, 2013.
	At January 31, 2014, there was approximately $340,000 of unrecognized compensation cost related to share-based payments that is expected to be recognized over a weighted-average period of 2.10 years.
	The following tables represent equity award activity for the nine-month period ended January 31, 2014:
			Number				Weighted-Average			Weighted-Average
			of				Exercise Price			Remaining
	Stock Options		Shares							Contract Life (Years)
	Outstanding options at April 30, 2013			205,500			$	4.28		6.54
	Granted			70,000			$	6.71		9.58
	Exercised			13,533			$	4.62			-
	Forfeited			1,000			$	3.88			-
	Outstanding options at January 31, 2014			260,967			$	4.92		6.74
	Outstanding exercisable at January 31, 2014			141,634			$	4.28		4.93
	Restricted Stock		Number
			of
			Shares
	Outstanding awards at April 30, 2013			11,007
	Granted			4,608
	Issued			4,469
	Forfeited			-
	Outstanding awards at January 31, 2014			11,146
	Outstanding vested at January 31, 2014			-
	Shares available for future equity awards to employees, officers, directors and consultants of the Company under the existing 1991 Plan and 2010 Plan were 27,000 and 189,651, respectively, at January 31, 2014.  At January 31, 2014 the aggregate intrinsic value of options and restricted stock outstanding was approximately $2,320,000, and the aggregate intrinsic value of exercisable options was approximately $1,268,000.  The Company recognized share-based compensation expense of $142,000 for the nine-month period ended January 31, 2014 and $89,000 for the nine-month period ended January 31, 2013.  The weighted-average fair value of the options and restricted stock granted in the nine-month period ended January 31, 2014 was $4.84 per stock option and $5.86 per restricted stock award.
	The following table summarizes information about equity awards outstanding at January 31, 2014:
						Options Outstanding						Options Exercisable
	Range of Exercise					Number			Weighted-	Weighted-		Number		Weighted-
	Prices					Outstanding at			Average	Average		Exercisable		Average
						31-Jan-14			Remaining	Exercise		at		Exercise
									Contractual	Price		January 31, 2014		Price
									Life
									(Years)
	$3.01	-	$4.00				104,250		4.59	$	3.54		88,250	$	3.63
	$4.01	-	$5.00				23,967		8.3	$	4.35		7,300	$	4.35
	$5.01	-	$6.00				115,000		8.22	$	5.54		38,334	$	5.21
	$7.01	-	$8.00				7,750		4.61	$	7.05		7,750	$	7.05
	$10.01	-	$11.00				10,000		9.86	$	11.83		-		-
	Total						260,967		6.74	$	4.92		141,634	$	4.28

Note_6_Net_Income_Per_Share

Note 6 - Net Income Per Share	9 Months Ended
	Jan. 31, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	6.           NET INCOME PER SHARE
	The following table presents the calculation of basic and diluted income per share (in thousands):
		Three Months Ended				Nine Months Ended
		January 31,				January 31,
		2014		2013		2014		2013
	Numerator:
	Net income	$	569	$	716	$	1,486	$	968
	Denominator:
	Weighted average common shares		3,814		3,914		3,856		3,895
	Outstanding – basic
	Effect of dilutive options outstanding		139		11		91		9
	Weighted average common shares		3,953		3,925		3,947		3,904
	outstanding – diluted
	Options to purchase 10,000 and 223,750 shares of common stock as of the three-month periods ended January 31, 2014 and 2013, respectively, were anti-dilutive and therefore were not included in the computation of diluted earnings per share.  For the nine-month periods ended January 31, 2014 and 2013, options to purchase 10,000 and 201,750 shares, respectively, were anti-dilutive and were not included in the computation of diluted earnings per share.

Note_7_Pledged_Assets_Notes_Pa

Note 7 - Pledged Assets, Notes Payable and Long-Term Debt	9 Months Ended
	Jan. 31, 2014
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	7.           PLEDGED ASSETS, NOTES PAYABLE AND LONG-TERM DEBT
	As of January 31, 2014, the Company had two credit agreements including an operating line of credit and Industrial Revenue Bonds that are secured by its production and headquarters facility in Olathe, Kansas.
	The Company’s $6,000,000 operating line of credit provides the Company and its wholly-owned subsidiary with short-term financing for their working capital requirements. The line of credit’s borrowing capacity is calculated as a specified percentage of accounts receivable and inventory on a monthly basis and was amended on October 16, 2013 to extend the expiration date of the line of credit to October 30, 2015.  The total amount of borrowing base for the line of credit as of January 31, 2014 was approximately $4,726,000, all of which was available.  It is secured by accounts receivable and inventory and accrues interest at a performance-based rate that is based on the prime rate (3.25% at January 31, 2014) plus/minus 0.5%.  The interest rate actually assessed is determined by the Company’s debt-to-tangible net worth ratio and was 2.75% on January 31, 2014.  The loan agreement has various covenants, including a financial covenant pertaining to the maintenance of total tangible net worth and a required debt service coverage ratio.  When an amount is outstanding, the borrowings on the line of credit are presented on the balance sheet as long-term in accordance with the terms of the line of credit.
	The following table is a summary of the Company’s long-term debt and related current maturities (in thousands):
		31-Jan-14		30-Apr-13
	Industrial Revenue Bonds, Series 2006A, 5-year adjustable interest rate based on the yield on 5-year United States Treasury Notes, plus .45% (1.89% as of October 31, 2013), due in monthly principal and interest payments beginning October 1, 2006 through maturity  on September 1, 2026, secured by real estate.  Effective September 1, 2011, the 5-year adjustable interest rate was reset to 1.89% for the next five years.	$	2,666	$	2,804
	Operating line of credit, $6,000,000 limit on borrowing capacity, prime rate (3.25% at January 31, 2014) plus/minus 0.5% performance based interest, due in full on October 30, 2015, secured by accounts receivable and inventory.  The interest rate as of January 31, 2014 was 2.75%		-		-
			2,666		2,804
	Less current maturities		188		185
		$	2,478	$	2,619
	The approximate aggregate amount of principal to be paid on the long-term debt and line of credit during each of the next five fiscal years ending April 30 is as follows (in thousands):
	Year	Amount
	2014 (remaining)	$	47
	2015		189
	2016		192
	2017		196
	2018		200
	Thereafter		1,842
		$	2,666

Note_8_Segment_Reporting

Note 8 - Segment Reporting	9 Months Ended
	Jan. 31, 2014
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
	8.           SEGMENT REPORTING
	The Company operates and measures the revenues and gross margins of two primary business segments, custom solutions for Original Equipment Manufacturers (“OEM”) and Proprietary M2M products (“Proprietary”).   The OEM solutions business segment consists primarily of custom electronic assemblies, engineering services, liquid crystal displays and data communication technologies. The Proprietary products business segment is made up of remote monitoring hardware and data services, industrial data communication solutions, and ultra-rugged handheld computers, peripherals and maintenance contract revenues.  The following table (in thousands) presents segment revenues and gross margins which the Company evaluates in determining overall operating performance and the allocation of resources.  Other segment information such as components of the Statement of Operations below the gross margin total and assets or other balance sheet information are not presented.  As the Company’s operations of the two segments are so intertwined, the Company’s chief operating decision maker (Elecsys International Corporation’s President) does not review that financial information at a segment reporting level and that information is also not readily available.
		Three Months Ended January 31, 2014
		OEM		Proprietary		Total
	Total revenues	$	3,032	$	4,651	$	7,683
	Gross margin	$	698	$	2,224	$	2,922
		Three Months Ended January 31, 2013
		OEM		Proprietary		Total
	Total revenues	$	4,424	$	3,034	$	7,458
	Gross margin	$	1,226	$	1,577	$	2,803
		Nine Months Ended January 31, 2014
		OEM		Proprietary		Total
	Total revenues	$	10,930	$	10,857	$	21,787
	Gross margin	$	2,772	$	5,386	$	8,158
	Goodwill	$	-	$	1,942	$	1,942
		Nine Months Ended January 31, 2013
		OEM		Proprietary		Total
	Total revenues	$	9,968	$	7,885	$	17,853
	Gross margin	$	2,574	$	4,029	$	6,603
	Goodwill	$	-	$	1,942	$	1,942
	The following table reconciles total revenues to the products and services offered by the Company (in thousands).
		Three Months Ended				Nine Months Ended
		January 31,				January 31,
		2014		2013		2014		2013
	Products and services:
	OEM solutions	$	2,984	$	4,382	$	10,757	$	9,800
	Remote monitoring solutions		3,926		1,357		8,260		4,208
	Industrial data communications		333		113		829		624
	Mobile data acquisition		265		1,484		1,439		2,765
	Other services:
	OEM related services		48		42		173		168
	Proprietary product related services		127		80		329		287
	Total sales	$	7,683	$	7,458	$	21,787	$	17,853

Note_9_Warranty

Note 9 - Warranty	9 Months Ended
	Jan. 31, 2014
Product Warranties Disclosures [Abstract]	'
Product Warranty Disclosure [Text Block]	'
	9.           WARRANTY
	The Company provides a limited warranty for a period of one year from the date of a customer’s receipt of its products, or one year from the installation date for some of its products, and will also provide an extended warranty for additional purchase price to the customer.  The Company’s standard warranties require the Company to repair or replace defective products at no cost to the customer or refund the customer’s purchase price.  The Company’s product warranty liability reflects management’s best estimate of probable liability under product warranties.  Management determines the liability based on known product failures (if any), historical experience, and other currently available evidence.
	The following table presents changes in the Company’s warranty liability, which is included in accrued expenses on the balance sheets (in thousands):
		Nine Months Ended January 31,
		2014			2013
	Warranty reserve balance at beginning of period	$	90		$	163
	Expense accrued, including adjustments		92			(3	)
	Warranty costs incurred		(67	)		(62	)
	Warranty reserve balance at end of period	$	115		$	98

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	9 Months Ended
	Jan. 31, 2014
Accounting Policies [Abstract]	'
Consolidation, Policy [Policy Text Block]	'
	Principles of Consolidation
	The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Elecsys International Corporation.  All significant intercompany balances and transactions have been eliminated in consolidation.
Comprehensive Income, Policy [Policy Text Block]	'
	Comprehensive Income
	The Company has no components of other comprehensive income, therefore comprehensive income equals net income.
Fair Value of Financial Instruments, Policy [Policy Text Block]	'
	Fair Value of Financial Instruments
	The carrying amount of financial instruments, including cash, accounts receivable, accounts payable, and the current portion of long-term debt approximates fair value because of the short-term nature of these items.
	The carrying value of the Company’s long-term debt approximates fair value as the Industrial Revenue Bonds include a variable interest rate component.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recent Accounting Pronouncements
	There have been no recent accounting pronouncements or changes in accounting pronouncements during the nine-month period ended January 31, 2014, which are of material significance, or have potential material significance, to the Company.
Revenue Recognition, Policy [Policy Text Block]	'
	Revenue Recognition
	The Company derives revenue from the manufacture of production units of electronic assemblies, liquid crystal displays, and its proprietary products including its remote monitoring equipment, RFID technology and solutions and its mobile computing products.  The Company also derives revenue from repairs and non-warranty services, engineering design services, remote monitoring services and maintenance contracts.  Production and repaired units are billed to the customer when they are shipped.  Remote monitoring services and maintenance contracts are billed and the revenue recognized at the end of the month the services are provided or maintenance periods are completed.  Customers that utilize the Company’s engineering design services are billed and revenue is recognized when the design services or tooling have been completed.  The Company requires its customers to provide a binding purchase order to verify the manufacturing services to be provided.  Typically, the Company does not have any post-shipment obligations, including customer acceptance requirements.  The Company does provide training and installation services to its customers and those services are billed and the revenue recognized at the end of the month the services are completed.  Revenue recognized is net of any sales taxes, tariffs, or duties remitted to any governmental authority.
Receivables, Policy [Policy Text Block]	'
	Accounts Receivable
	Accounts receivable are carried at original invoice amount less an estimate made for doubtful receivables based on a review of all outstanding amounts on a monthly basis. Management determines the allowance for doubtful accounts by regularly evaluating individual customer receivables, considering a customer’s financial condition and credit history, as well as current economic conditions. Receivables are written off when deemed uncollectible. Recoveries of receivables previously written off are recorded when received.  The majority of the customer accounts are considered past due after the invoice becomes older than the customer’s credit terms (30 days for the majority of customers).  Interest is not charged on past due accounts for the majority of the Company’s customers.
Inventory, Policy [Policy Text Block]	'
	Inventories
	Inventories are stated at the lower of cost, using the first-in, first-out (FIFO) method, or fair value.  The Company’s industry is characterized by rapid technological change, short-term customer commitments and rapid changes in demand, as well as other market considerations.  Provisions for estimated excess and obsolete inventory are based on quarterly reviews of inventory quantities on hand and the latest forecasts of product demand and production requirements from customers.  Inventories are reviewed in detail on a quarterly basis utilizing multiple annual time horizons ranging from 24-months to 60-months.  Individual part numbers that have not been used in each of the time horizons are examined by manufacturing personnel for obsolescence, excess and fair value.  Parts that are not identified for common use or are unique to a former customer or application are categorized as obsolete and are included in the provision for estimated excess and obsolete inventory.  If actual market conditions or customers’ product demands are less favorable than those projected, additional inventory write-downs may be required.
Property, Plant and Equipment, Policy [Policy Text Block]	'
	Property and Equipment
	Property and equipment are recorded at cost.  Depreciation is computed using the straight-line method over the following estimated useful lives:
	Description		Years
	Building and improvements		39
	Equipment	3	-	8
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	'
	Goodwill
	Goodwill is initially measured as the excess of the cost of an acquired business over the fair value of the identifiable net assets acquired.  The Company does not amortize goodwill, but rather reviews its carrying value for impairment annually (January 31) and whenever an impairment indicator is identified.  The goodwill impairment test involves a two-step approach.  The first step is to identify whether potential impairment of goodwill exists. If impairment of goodwill is determined to exist, the second step of the goodwill impairment test measures the amount of the impairment using a fair value-based approach.  No impairment indicators were identified as of January 31, 2014.
Intangible Assets, Finite-Lived, Policy [Policy Text Block]	'
	Intangible Assets
	Intangible assets consist of patents, trademarks, copyrights, customer relationships and capitalized software.  Intangible assets are amortized over their estimated useful lives using the straight-line method.  The useful lives of the Company’s intangible assets range from 5 – 15 years.
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]	'
	Impairment of Long-Lived Intangible Assets
	Long-lived assets, including amortizable intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be fully recoverable. These events or changes in circumstances may include a significant deterioration of operating results, changes in business plans, or changes in anticipated future cash flows. If an impairment indicator is present, the Company evaluates recoverability by a comparison of the carrying amount of the assets to future undiscounted cash flows expected to be generated by the assets.  If the sum of the expected future undiscounted cash flows is less than the carrying amount, the Company would recognize an impairment loss. An impairment loss would be measured by comparing the amount by which the carrying value exceeds the fair value of the long-lived assets and intangibles.
Income Tax, Policy [Policy Text Block]	'
	Income Taxes
	The Company accounts for income taxes in accordance with ASC Topic 740, Income Taxes.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to the differences between the tax bases of assets and liabilities and their carrying amount for financial reporting purposes, as measured by the enacted tax rates which will be in effect when these differences are expected to reverse.  The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.  In assessing the realizability of deferred income tax assets, the Company considers whether it is “more likely than not,” according to the criteria of ASC Topic 740, that some portion or all of the deferred income tax assets will be realized.  The ultimate realization of deferred income tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible.  ASC Topic 740 requires that the Company recognize the financial statement benefit of a tax position only after determining that the relevant tax authority would more likely than not sustain the position following an audit.
	For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority.
Guarantees, Indemnifications and Warranties Policies [Policy Text Block]	'
	Warranty Reserve
	The Company has established a warranty reserve for rework, product warranties and customer refunds.  The Company provides a limited warranty for a period of one year from the date of receipt of products by customers and the Company offers extended warranties for additional purchase by its customers.  The standard warranties require the Company to repair or replace defective products at no cost to the customer or refund the customer’s purchase price.  The warranty reserve is based on historical experience and analysis of specific known and potential warranty issues.  The product warranty liability reflects management’s best estimate of probable liability under the product warranties.
Shipping and Handling Cost, Policy [Policy Text Block]	'
	Shipping and Handling Costs
	Shipping and handling costs that are billed to our customers are recognized as revenues in the period that the product is shipped.  Shipping and handling costs that are incurred by the Company are recognized as cost of sales in the period that the product is shipped.
Subsequent Events, Policy [Policy Text Block]	'
	Subsequent Events
	The Company evaluates all subsequent events and transactions for potential recognition or disclosure in its financial statements.  There are no matters which require disclosure.
Standard Product Warranty, Policy [Policy Text Block]	'
	WARRANTY
	The Company provides a limited warranty for a period of one year from the date of a customer’s receipt of its products, or one year from the installation date for some of its products, and will also provide an extended warranty for additional purchase price to the customer.  The Company’s standard warranties require the Company to repair or replace defective products at no cost to the customer or refund the customer’s purchase price.  The Company’s product warranty liability reflects management’s best estimate of probable liability under product warranties.  Management determines the liability based on known product failures (if any), historical experience, and other currently available evidence.
	The following table presents changes in the Company’s warranty liability, which is included in accrued expenses on the balance sheets (in thousands):
			Nine Months Ended January 31,
			2014			2013
	Warranty reserve balance at beginning of period		$	90		$	163
	Expense accrued, including adjustments			92			(3	)
	Warranty costs incurred			(67	)		(62	)
	Warranty reserve balance at end of period		$	115		$	98

Note_1_Nature_of_Operations_an1

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Jan. 31, 2014
Accounting Policies [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
	Description		Years
	Building and improvements		39
	Equipment	3	-	8

Note_3_Intangible_Assets_and_G1

Note 3 - Intangible Assets and Goodwill (Tables)	9 Months Ended
	Jan. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
						31-Jan-14					30-Apr-13
	Intangible Asset Description	Estimated				Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
		Useful
		Lives
	Patents, trademarks and copyrights		10	–	15	$	852	$	(456	)	$	852	$	(404	)
	Customer relationships		5	–	15		1,040		(496	)		1,040		(449	)
	Trade name			15			530		(227	)		530		(200	)
	Technologies		13	–	15		475		(184	)		475		(159	)
						$	2,897	$	(1,363	)	$	2,897	$	(1,212	)
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	'
	Year	Amounts
	2014 (remaining)	$	51
	2015		187
	2016		166
	2017		166
	2018		90

Note_4_Inventory_Tables

Note 4 - Inventory (Tables)	9 Months Ended
	Jan. 31, 2014
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
		31-Jan-14			30-Apr-13
	Raw material	$	3,838		$	3,077
	Work-in-process		1,612			1,409
	Finished goods		2,992			2,434
			8,442			6,920
	Reserves		(602	)		(682	)
		$	7,840		$	6,238

Note_5_Stockholders_Equity_Tab

Note 5 - Stockholders' Equity (Tables)	9 Months Ended
	Jan. 31, 2014
Note 5 - Stockholders' Equity (Tables) [Line Items]	'
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
			Nine Months				Nine Months
			Ended				Ended
			31-Jan-14				31-Jan-13
	Risk-free interest rate			2.97%				2.97%
	Expected life, in years			6				6
	Expected volatility		82.59	–	83.23%		65.52	–	80.48%
	Dividend yield			0.00%				0.00%
	Forfeiture rate			11.40%				9.20%
Schedule of Share-based Compensation, Activity [Table Text Block]	'
			Number				Weighted-Average			Weighted-Average
			of				Exercise Price			Remaining
	Stock Options		Shares							Contract Life (Years)
	Outstanding options at April 30, 2013			205,500			$	4.28		6.54
	Granted			70,000			$	6.71		9.58
	Exercised			13,533			$	4.62			-
	Forfeited			1,000			$	3.88			-
	Outstanding options at January 31, 2014			260,967			$	4.92		6.74
	Outstanding exercisable at January 31, 2014			141,634			$	4.28		4.93
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	'
						Options Outstanding						Options Exercisable
	Range of Exercise					Number			Weighted-	Weighted-		Number		Weighted-
	Prices					Outstanding at			Average	Average		Exercisable		Average
						31-Jan-14			Remaining	Exercise		at		Exercise
									Contractual	Price		January 31, 2014		Price
									Life
									(Years)
	$3.01	-	$4.00				104,250		4.59	$	3.54		88,250	$	3.63
	$4.01	-	$5.00				23,967		8.3	$	4.35		7,300	$	4.35
	$5.01	-	$6.00				115,000		8.22	$	5.54		38,334	$	5.21
	$7.01	-	$8.00				7,750		4.61	$	7.05		7,750	$	7.05
	$10.01	-	$11.00				10,000		9.86	$	11.83		-		-
	Total						260,967		6.74	$	4.92		141,634	$	4.28
Restricted Stock [Member]	'
Note 5 - Stockholders' Equity (Tables) [Line Items]	'
Schedule of Share-based Compensation, Activity [Table Text Block]	'
	Restricted Stock		Number
			of
			Shares
	Outstanding awards at April 30, 2013			11,007
	Granted			4,608
	Issued			4,469
	Forfeited			-
	Outstanding awards at January 31, 2014			11,146
	Outstanding vested at January 31, 2014			-

Note_6_Net_Income_Per_Share_Ta

Note 6 - Net Income Per Share (Tables)	9 Months Ended
	Jan. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three Months Ended				Nine Months Ended
		January 31,				January 31,
		2014		2013		2014		2013
	Numerator:
	Net income	$	569	$	716	$	1,486	$	968
	Denominator:
	Weighted average common shares		3,814		3,914		3,856		3,895
	Outstanding – basic
	Effect of dilutive options outstanding		139		11		91		9
	Weighted average common shares		3,953		3,925		3,947		3,904
	outstanding – diluted

Note_7_Pledged_Assets_Notes_Pa1

Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Tables)	9 Months Ended
	Jan. 31, 2014
Debt Disclosure [Abstract]	'
Schedule of Long-term Debt Instruments [Table Text Block]	'
		31-Jan-14		30-Apr-13
	Industrial Revenue Bonds, Series 2006A, 5-year adjustable interest rate based on the yield on 5-year United States Treasury Notes, plus .45% (1.89% as of October 31, 2013), due in monthly principal and interest payments beginning October 1, 2006 through maturity  on September 1, 2026, secured by real estate.  Effective September 1, 2011, the 5-year adjustable interest rate was reset to 1.89% for the next five years.	$	2,666	$	2,804
	Operating line of credit, $6,000,000 limit on borrowing capacity, prime rate (3.25% at January 31, 2014) plus/minus 0.5% performance based interest, due in full on October 30, 2015, secured by accounts receivable and inventory.  The interest rate as of January 31, 2014 was 2.75%		-		-
			2,666		2,804
	Less current maturities		188		185
		$	2,478	$	2,619
Schedule of Maturities of Long-term Debt [Table Text Block]	'
	Year	Amount
	2014 (remaining)	$	47
	2015		189
	2016		192
	2017		196
	2018		200
	Thereafter		1,842
		$	2,666

Note_8_Segment_Reporting_Table

Note 8 - Segment Reporting (Tables)	9 Months Ended
	Jan. 31, 2014
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
		Three Months Ended January 31, 2014
		OEM		Proprietary		Total
	Total revenues	$	3,032	$	4,651	$	7,683
	Gross margin	$	698	$	2,224	$	2,922
		Three Months Ended January 31, 2013
		OEM		Proprietary		Total
	Total revenues	$	4,424	$	3,034	$	7,458
	Gross margin	$	1,226	$	1,577	$	2,803
		Nine Months Ended January 31, 2014
		OEM		Proprietary		Total
	Total revenues	$	10,930	$	10,857	$	21,787
	Gross margin	$	2,772	$	5,386	$	8,158
	Goodwill	$	-	$	1,942	$	1,942
		Nine Months Ended January 31, 2013
		OEM		Proprietary		Total
	Total revenues	$	9,968	$	7,885	$	17,853
	Gross margin	$	2,574	$	4,029	$	6,603
	Goodwill	$	-	$	1,942	$	1,942
Revenue from External Customers by Products and Services [Table Text Block]	'
		Three Months Ended				Nine Months Ended
		January 31,				January 31,
		2014		2013		2014		2013
	Products and services:
	OEM solutions	$	2,984	$	4,382	$	10,757	$	9,800
	Remote monitoring solutions		3,926		1,357		8,260		4,208
	Industrial data communications		333		113		829		624
	Mobile data acquisition		265		1,484		1,439		2,765
	Other services:
	OEM related services		48		42		173		168
	Proprietary product related services		127		80		329		287
	Total sales	$	7,683	$	7,458	$	21,787	$	17,853

Note_9_Warranty_Tables

Note 9 - Warranty (Tables)	9 Months Ended
	Jan. 31, 2014
Product Warranties Disclosures [Abstract]	'
Schedule of Product Warranty Liability [Table Text Block]	'
		Nine Months Ended January 31,
		2014			2013
	Warranty reserve balance at beginning of period	$	90		$	163
	Expense accrued, including adjustments		92			(3	)
	Warranty costs incurred		(67	)		(62	)
	Warranty reserve balance at end of period	$	115		$	98

Note_1_Nature_of_Operations_an2

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details)	9 Months Ended
	Jan. 31, 2014
Minimum [Member]	'
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]	'
Finite-Lived Intangible Asset, Useful Life	'5 years
Maximum [Member]	'
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]	'
Finite-Lived Intangible Asset, Useful Life	'15 years

Note_1_Nature_of_Operations_an3

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) - Property and Equipment, Estimated Useful Lives	9 Months Ended
	Jan. 31, 2014
Building and Building Improvements [Member]	'
Property, Plant and Equipment [Line Items]	'
Property and equipment, useful lives	'39 years
Equipment [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property and equipment, useful lives	'3 years
Equipment [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property and equipment, useful lives	'8 years

Note_3_Intangible_Assets_and_G2

Note 3 - Intangible Assets and Goodwill (Details) (USD $)	9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Apr. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'
Amortization of Intangible Assets	$154,000	$154,000	'
Goodwill	1,942,000	1,942,000	1,942,000
Goodwill, Other Changes	$0	'	'

Note_3_Intangible_Assets_and_G3

Note 3 - Intangible Assets and Goodwill (Details) - The Companybs Total Intangible Assets Consist of the Following (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Apr. 30, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$2,897	$2,897
Accumulated Amortization	-1,363	-1,212
Patents, Trademarks and Copyrights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	852	852
Accumulated Amortization	-456	-404
Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	1,040	1,040
Accumulated Amortization	-496	-449
Trade Names [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'15 years	'
Gross Carrying Amount	530	530
Accumulated Amortization	-227	-200
Developed Technology Rights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	475	475
Accumulated Amortization	($184)	($159)
Minimum [Member] | Patents, Trademarks and Copyrights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'10 years	'
Minimum [Member] | Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'5 years	'
Minimum [Member] | Developed Technology Rights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'13 years	'
Minimum [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'5 years	'
Maximum [Member] | Patents, Trademarks and Copyrights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'15 years	'
Maximum [Member] | Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'15 years	'
Maximum [Member] | Developed Technology Rights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'15 years	'
Maximum [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Estimated Useful Lives	'15 years	'

Note_3_Intangible_Assets_and_G4

Note 3 - Intangible Assets and Goodwill (Details) - Estimated Amortization Expense (USD $)	Jan. 31, 2014
In Thousands, unless otherwise specified
Estimated Amortization Expense [Abstract]	'
2014 (remaining)	$51
2015	187
2016	166
2017	166
2018	$90

Note_4_Inventory_Details_Inven

Note 4 - Inventory (Details) - Inventories (USD $)	Jan. 31, 2014	Apr. 30, 2013
In Thousands, unless otherwise specified
Inventories [Abstract]	'	'
Raw material	$3,838	$3,077
Work-in-process	1,612	1,409
Finished goods	2,992	2,434
	8,442	6,920
Reserves	-602	-682
	$7,840	$6,238

Note_5_Stockholders_Equity_Det

Note 5 - Stockholders' Equity (Details) (USD $)	3 Months Ended	9 Months Ended		12 Months Ended
	Jan. 31, 2014	Jan. 31, 2014	Jan. 31, 2013	Dec. 17, 2012	Apr. 30, 2013
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share Repurchase Program, Repurchase Percentage	'	'	'	10.00%	'
Share Repurchase Program, Shares to be Repurchased	'	'	'	400,000	'
Stock Repurchased During Period, Shares	27,407	98,767	'	'	'
Stock Repurchased During Period, Value (in Dollars)	$220,000	$703,000	'	'	'
Stock Repurchased During the Period, Cost Per Share (in Dollars per share)	$8.03	$7.14	'	'	'
Share Based Compensation, Number Of Plans	2	2	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	260,967	260,967	'	'	205,500
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (in Dollars)	'	61,000	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	340,000	340,000	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'2 years 36 days	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value (in Dollars)	2,320,000	2,320,000	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value (in Dollars)	1,268,000	1,268,000	'	'	'
Share-based Compensation (in Dollars)	'	$142,000	$89,000	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	'	$4.84	'	'	'
Restricted Stock [Member] | 2010 Equity Incentive Plan [Member]	'	'	'	'	'
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	11,146	11,146	'	'	'
Restricted Stock [Member]	'	'	'	'	'
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	'	$5.86	'	'	'
1991 Stock Option Plan [Member]	'	'	'	'	'
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	675,000	675,000	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	'	'10 years	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	93,000	93,000	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	27,000	27,000	'	'	'
1991 Stock Option Plan [Member] | Minimum [Member]	'	'	'	'	'
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'	'1 year	'	'	'
1991 Stock Option Plan [Member] | Maximum [Member]	'	'	'	'	'
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'	'5 years	'	'	'
2010 Equity Incentive Plan [Member]	'	'	'	'	'
Note 5 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	380,000	380,000	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	'	'10 years	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	167,967	167,967	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	189,651	189,651	'	'	'

Note_5_Stockholders_Equity_Det1

Note 5 - Stockholders' Equity (Details) - Stock Options Valuation Assumptions	9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Note 5 - Stockholders' Equity (Details) - Stock Options Valuation Assumptions [Line Items]	'	'
Risk-free interest rate	2.97%	2.97%
Expected life, in years	'6 years	'6 years
Dividend yield	0.00%	0.00%
Forfeiture rate	11.40%	9.20%
Minimum [Member]	'	'
Note 5 - Stockholders' Equity (Details) - Stock Options Valuation Assumptions [Line Items]	'	'
Expected volatility	82.59%	65.52%
Maximum [Member]	'	'
Note 5 - Stockholders' Equity (Details) - Stock Options Valuation Assumptions [Line Items]	'	'
Expected volatility	83.23%	80.48%

Note_5_Stockholders_Equity_Det2

Note 5 - Stockholders' Equity (Details) - Equity Award Activity, Stock Options (USD $)	9 Months Ended	12 Months Ended
	Jan. 31, 2014	Apr. 30, 2013
Equity Award Activity, Stock Options [Abstract]	'	'
Number of Shares	260,967	205,500
Weighted-Average Exercise Price (in Dollars per share)	$4.92	$4.28
Weighted-Average Remaining Contract Life (Years)	'6 years 270 days	'6 years 197 days
Outstanding exercisable at January 31, 2014	141,634	'
Outstanding exercisable at January 31, 2014 (in Dollars per share)	$4.28	'
Outstanding exercisable at January 31, 2014	'4 years 339 days	'
Granted	70,000	'
Granted (in Dollars per share)	$6.71	'
Granted	'9 years 211 days	'
Exercised	13,533	'
Exercised (in Dollars per share)	$4.62	'
Forfeited	1,000	'
Forfeited (in Dollars per share)	$3.88	'

Note_5_Stockholders_Equity_Det3

Note 5 - Stockholders' Equity (Details) - Equty Award Activity, Restricted Stock	9 Months Ended
	Jan. 31, 2014	Apr. 30, 2013
Equty Award Activity, Restricted Stock [Abstract]	'	'
Number of Shares	11,146	11,007
Granted	4,608	'
Issued	4,469	'

Note_5_Stockholders_Equity_Det4

Note 5 - Stockholders' Equity (Details) - Options Outstanding and Exercisable, by Exercise Range (USD $)	9 Months Ended
	Jan. 31, 2014	Apr. 30, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Options Outstanding, Weighted-Average Remaining Contractual Life (in Shares)	260,967	'
Options Outstanding, Weighted-Average Remaining Contractual Life	'6 years 270 days	'
Options Outstanding, Weighted-Average Exercise Price	$4.92	$4.28
Options Exercisable (in Shares)	141,634	'
Options Exercisable, Weighted- Average Exercise Price	$4.28	'
$3.01 - $4.00 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Range of Exercise Prices	$3.01	'
Range of Exercise Prices	$4	'
Options Outstanding, Weighted-Average Remaining Contractual Life (in Shares)	104,250	'
Options Outstanding, Weighted-Average Remaining Contractual Life	'4 years 215 days	'
Options Outstanding, Weighted-Average Exercise Price	$3.54	'
Options Exercisable (in Shares)	88,250	'
Options Exercisable, Weighted- Average Exercise Price	$3.63	'
$4.01 - $5.00 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Range of Exercise Prices	$4.01	'
Range of Exercise Prices	$5	'
Options Outstanding, Weighted-Average Remaining Contractual Life (in Shares)	23,967	'
Options Outstanding, Weighted-Average Remaining Contractual Life	'8 years 109 days	'
Options Outstanding, Weighted-Average Exercise Price	$4.35	'
Options Exercisable (in Shares)	7,300	'
Options Exercisable, Weighted- Average Exercise Price	$4.35	'
$5.01 - $6.00 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Range of Exercise Prices	$5.01	'
Range of Exercise Prices	$6	'
Options Outstanding, Weighted-Average Remaining Contractual Life (in Shares)	115,000	'
Options Outstanding, Weighted-Average Remaining Contractual Life	'8 years 80 days	'
Options Outstanding, Weighted-Average Exercise Price	$5.54	'
Options Exercisable (in Shares)	38,334	'
Options Exercisable, Weighted- Average Exercise Price	$5.21	'
$7.01 - $8.00 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Range of Exercise Prices	$7.01	'
Range of Exercise Prices	$8	'
Options Outstanding, Weighted-Average Remaining Contractual Life (in Shares)	7,750	'
Options Outstanding, Weighted-Average Remaining Contractual Life	'4 years 222 days	'
Options Outstanding, Weighted-Average Exercise Price	$7.05	'
Options Exercisable (in Shares)	7,750	'
Options Exercisable, Weighted- Average Exercise Price	$7.05	'
$10.01 - $11.00 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Range of Exercise Prices	$10.01	'
Range of Exercise Prices	$11	'
Options Outstanding, Weighted-Average Remaining Contractual Life (in Shares)	10,000	'
Options Outstanding, Weighted-Average Remaining Contractual Life	'9 years 313 days	'
Options Outstanding, Weighted-Average Exercise Price	$11.83	'

Note_6_Net_Income_Per_Share_De

Note 6 - Net Income Per Share (Details)	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Earnings Per Share [Abstract]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	10,000	223,750	10,000	201,750

Note_6_Net_Income_Per_Share_De1

Note 6 - Net Income Per Share (Details) - Basic and Diluted Income Per Share (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013	Apr. 30, 2013
Basic and Diluted Income Per Share [Abstract]	'	'	'	'	'
Net income (in Dollars)	$569	$716	$1,486	$968	$1,683
Weighted average common shares Outstanding b basic	3,814	3,914	3,856	3,895	'
Effect of dilutive options outstanding	139	11	91	9	'
Weighted average common shares outstanding b diluted	3,953	3,925	3,947	3,904	'

Note_7_Pledged_Assets_Notes_Pa2

Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) (USD $)	9 Months Ended
	Jan. 31, 2014
Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) [Line Items]	'
Number Of Credit Agreements	2
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	$6,000,000
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)	$4,726,000
Debt Instrument, Basis Spread on Variable Rate	0.50%
Line of Credit [Member] | Prime Rate [Member]	'
Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) [Line Items]	'
Debt Instrument, Interest Rate, Reference Rate	3.25%
Line of Credit [Member]	'
Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) [Line Items]	'
Line of Credit Facility, Interest Rate at Period End	2.75%

Note_7_Pledged_Assets_Notes_Pa3

Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) - Long-Term Debt (USD $)	Jan. 31, 2014	Apr. 30, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Industrial Revenue Bonds, Series 2006A, 5-year adjustable interest rate based on the yield on 5-year United States Treasury Notes, plus .45% (1.89% as of October 31, 2013), due in monthly principal and interest payments beginning October 1, 2006 through maturity on September 1, 2026, secured by real estate. Effective September 1, 2011, the 5-year adjustable interest rate was reset to 1.89% for the next five years.	$2,666	$2,804
	2,666	2,804
Less current maturities	188	185
	$2,478	$2,619

Note_7_Pledged_Assets_Notes_Pa4

Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) - Long-Term Debt (Parentheticals) (USD $)	9 Months Ended	12 Months Ended
	Jan. 31, 2014	Apr. 30, 2013
Debt Instrument [Line Items]	'	'
Basis Spread on Variable Rate	0.50%	'
Operating Line of Credit, Limit on Borrowing Capacity (in Dollars)	6,000,000	'
Pre-reset Interest Rate [Member] | Secured Debt [Member]	'	'
Debt Instrument [Line Items]	'	'
Basis Spread on Variable Rate	0.45%	0.45%
Secured Debt [Member]	'	'
Debt Instrument [Line Items]	'	'
Maturity Date	1-Sep-26	1-Sep-26
Interest Rate	1.89%	1.89%
Line of Credit [Member]	'	'
Debt Instrument [Line Items]	'	'
Basis Spread on Variable Rate	0.50%	0.50%
Maturity Date	30-Oct-15	30-Oct-15
Interest Rate	2.75%	2.75%
Operating Line of Credit, Limit on Borrowing Capacity (in Dollars)	6,000,000	6,000,000
Operating Line of Credit, Prime Rate	3.25%	3.25%

Note_7_Pledged_Assets_Notes_Pa5

Note 7 - Pledged Assets, Notes Payable and Long-Term Debt (Details) - Principal to be Paid on the Long-Term Debt (USD $)	Jan. 31, 2014	Apr. 30, 2013
In Thousands, unless otherwise specified
Principal to be Paid on the Long-Term Debt [Abstract]	'	'
2014 (remaining)	$47	'
2015	189	'
2016	192	'
2017	196	'
2018	200	'
Thereafter	1,842	'
	$2,666	$2,804

Note_8_Segment_Reporting_Detai

Note 8 - Segment Reporting (Details)	9 Months Ended
	Jan. 31, 2014
Segment Reporting [Abstract]	'
Number of Reportable Segments	2

Note_8_Segment_Reporting_Detai1

Note 8 - Segment Reporting (Details) - Segment Reporting (USD $)	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013	Apr. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Total revenues	$7,683,000	$7,458,000	$21,787,000	$17,853,000	'
Gross margin	2,922,000	2,803,000	8,158,000	6,603,000	'
Goodwill	1,942,000	1,942,000	1,942,000	1,942,000	1,942,000
Original Equipment Manufactures [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Total revenues	3,032,000	4,424,000	10,930,000	9,968,000	'
Gross margin	698,000	1,226,000	2,772,000	2,574,000	'
Goodwill	0	0	0	0	'
Proprietary Products [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Total revenues	4,651,000	3,034,000	10,857,000	7,885,000	'
Gross margin	2,224,000	1,577,000	5,386,000	4,029,000	'
Goodwill	$1,942,000	$1,942,000	$1,942,000	$1,942,000	'

Note_8_Segment_Reporting_Detai2

Note 8 - Segment Reporting (Details) - Total Revenues by Products and Services (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	$7,683	$7,458	$21,787	$17,853
Original Equipment Manufactures [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	2,984	4,382	10,757	9,800
Remote Monitoring Solutions [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	3,926	1,357	8,260	4,208
Industrial Data Communications [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	333	113	829	624
Mobile Data Acquisition [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	265	1,484	1,439	2,765
OEM Related Services [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	48	42	173	168
Proprietary Product Related Services [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Total sales by products and services	$127	$80	$329	$287

Note_9_Warranty_Details_Warran

Note 9 - Warranty (Details) - Warrant Liability (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Warrant Liability [Abstract]	'	'
Warranty reserve balance	$90	$163
Expense accrued, including adjustments	92	-3
Warranty costs incurred	-67	-62
Warranty reserve balance	$115	$98