SigmaTron International (SGMA) 10-Q 14 Sep 15 2016 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Jul. 31, 2015	Sep. 10, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 31, 2015
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Trading Symbol	sgma
Entity Registrant Name	SIGMATRON INTERNATIONAL INC
Entity Central Index Key	915,358
Current Fiscal Year End Date	--04-30
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		4,166,432

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)	Jul. 31, 2015	Apr. 30, 2015
Current assets:
Cash	$ 2,921,024	$ 2,868,217
Accounts receivable, less allowance for doubtful accounts of $100,000 and $186,844 at July 31, 2015 and April 30, 2015, respectively	20,687,556	20,170,723
Inventories, net	67,420,476	68,669,709
Prepaid expenses and other assets	2,503,499	2,103,367
Deferred income taxes	2,150,952	2,179,178
Other receivables	329,560	486,085
Total current assets	96,013,067	96,477,279
Property, machinery and equipment, net	33,413,581	33,864,527
Intangible assets, net of amortization of $3,853,210 and $3,737,856 at July 31, 2015 and April 30, 2015, respectively	5,058,790	5,174,144
Goodwill	3,222,899	3,222,899
Other assets	1,155,751	1,319,901
Total other long-term assets	9,437,440	9,716,944
Total assets	138,864,088	140,058,750
Current liabilities:
Trade accounts payable	38,212,661	35,838,275
Accrued wages	3,756,532	3,644,442
Accrued expenses	2,377,510	2,089,053
Income taxes payable	7,586	302
Current portion of long-term debt	165,000	165,000
Current portion of capital lease obligations	1,370,711	1,245,632
Current portion of contingent consideration	275,288	275,288
Current portion of deferred rent	160,962	150,594
Total current liabilities	46,326,250	43,408,586
Long-term debt, less current portion	25,754,693	31,252,793
Capital lease obligations, less current portion	3,664,809	3,401,913
Contingent consideration, less current portion	1,184,783	1,223,697
Deferred rent, less current portion	949,675	999,929
Other long-term liabilities	538,564	536,209
Deferred income taxes	2,550,236	2,550,236
Total long-term liabilities	34,642,760	39,964,777
Total liabilities	$ 80,969,010	$ 83,373,363
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value; 500,000 shares authorized, none issued or outstanding
Common stock, $.01 par value; 12,000,000 shares authorized, 4,166,432 and 4,075,785 shares issued and outstanding at July 31, 2015 and April 30, 2015, respectively	$ 41,485	$ 40,703
Capital in excess of par value	21,789,743	21,239,641
Retained earnings	36,063,850	35,405,043
Total stockholders' equity	57,895,078	56,685,387
Total liabilities and stockholders' equity	$ 138,864,088	$ 140,058,750

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Jul. 31, 2015	Apr. 30, 2015
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 100,000	$ 186,844
Intangible assets, amortization	$ 3,853,210	$ 3,737,856
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	12,000,000	12,000,000
Common stock, shares issued	4,166,432	4,075,785
Common stock, shares outstanding	4,166,432	4,075,785

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations - USD ($)	3 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 64,220,946	$ 54,947,477
Cost of products sold	57,990,672	50,201,029
Gross profit	6,230,274	4,746,448
Selling and administrative expenses	5,045,353	4,514,211
Operating income	1,184,921	232,237
Other income	(40,581)	(39,876)
Interest expense	263,179	256,547
Income from operations before income tax expense	962,323	15,566
Income tax expense (benefit)	303,517	(1,244)
Net income	$ 658,806	$ 16,810
Earnings per share - basic	$ 0.16	$ 0
Earnings per share - diluted	$ 0.16	$ 0
Weighted average shares of common stock outstanding Basic	4,148,285	4,028,535
Weighted average shares of common stock outstanding Diluted	4,193,657	4,105,627

Condensed Consolidated Stateme5

Condensed Consolidated Statements Of Cash Flows - USD ($)	3 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Cash flows from operating activities
Net income	$ 658,806	$ 16,810
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	1,290,963	1,210,235
Stock-based compensation	10,149	28,038
Restricted stock expense		1,746
Employee stock purchases	22,736	49,712
Provision for doubtful accounts	(86,844)
(Write-off) provision for inventory obsolescence	(49,866)
Deferred income tax expense (benefit)	28,226	(14,221)
Amortization of intangible assets	115,354	101,514
Loss from disposal or sale of machinery and equipment	8,405
Changes in assets and liabilities
Accounts receivable	(429,989)	(499,255)
Inventories	1,299,099	(3,816,960)
Prepaid expenses and other assets	(79,457)	(379,438)
Income taxes payable/refundable	7,284	(466,051)
Trade accounts payable	2,374,386	3,834,672
Deferred rent	(39,886)	15,153
Accrued expenses and wages	402,902	(663,143)
Net cash provided by (used) in operating activities	5,532,268	(581,188)
Cash flows from investing activities
Purchases of machinery and equipment	(145,193)	(2,038,346)
Net cash used in investing activities	(145,193)	(2,038,346)
Cash flows from financing activities
Proceeds from the exercise of common stock options		6,120
Proceeds from the sale of restricted stock	518,000
Payments of contingent consideration	(38,914)	(65,000)
Payments under capital lease and sale leaseback agreements	(315,254)	(191,307)
Payments under building notes payable	(41,250)	(37,749)
Borrowings under lines of credit	15,506,571	47,411,170
Payments under lines of credit	(20,963,421)	(47,489,716)
Net cash used in financing activities	(5,334,268)	(366,482)
Change in cash	52,807	(2,986,016)
Cash at beginning of period	2,868,217	5,440,319
Cash at end of period	2,921,024	2,454,303
Supplementary disclosures of cash flow information
Cash paid for interest	260,454	241,511
Cash paid for income taxes	8,310	104,110
Purchase of machinery and equipment financed under capital leases	$ 703,229	$ 108,971

Basis Of Presentation

Basis Of Presentation	3 Months Ended
	Jul. 31, 2015
Basis Of Presentation [Abstract]
Basis Of Presentation	Note A - Basis of Presentation The accompanying unaudited consolidated financial statements of SigmaTron International, Inc. (“SigmaTron”), SigmaTron’s wholly-owned subsidiaries Standard Components de Mexico S.A., AbleMex, S.A. de C.V., Digital Appliance Controls de Mexico, S.A. de C.V., Spitfire Controls (Vietnam) Co. Ltd., Spitfire Controls (Cayman) Co. Ltd. and wholly-owned foreign enterprises Wujiang SigmaTron Electronics Co., Ltd. and SigmaTron Electronic Technology Co., Ltd. (“SigmaTron China”) and international procurement office SigmaTron Taiwan branch (collectively, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, the consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three month period ended July 31, 2015 is not necessarily indicative of the results that may be expected for the year ending April 30, 2016. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended April 30, 2015.

Inventories, Net

Inventories, Net	3 Months Ended
	Jul. 31, 2015
Inventories, Net [Abstract]
Inventories	Note B - Inventories, net The components of inventory consist of the following: July 31, April 30, 2015 2015 Finished products $ $ Work-in-process Raw materials Less obsolescence reserve $ $

Earnings Per Share

Earnings Per Share	3 Months Ended
	Jul. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Note C - Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended July 31, 2015 2014 Net income $ $ Weighted-average shares Basic Effect of dilutive stock options Diluted Basic earnings per share $ $ Diluted earnings per share $ $ Options to purchase 85,954 and 97,854 shares of common stock were outstanding at July 31, 2015 and 2014, respectively. There were no options granted during the quarter ended July 31, 2015 and 2014. The Company recognized $4,559 and $18,372 in stock option expense for the three month period ended July 31, 2015 and 2014, respectively. The balance of unrecognized compensation expense related to the Company’s stock option plans was $17,148 and $35,235 at July 31, 2015 and 2014, respectively. The Company issued 25,000 shares of restricted stock on June 1, 2012, of which 8,330 vested in June 2012, 8,330 vested in June 2013 and 8,340 vested in June 2014. The Company recognized $0 and $1,746 in compensation expense for the three month period s ended July 31, 2015 and 2014 , respectively. There was no unrecognized compensation expense related to the Company’s restricted stock award at July 31, 2015 and 2014, respectively. On October 1, 2014, the Company granted 1,750 shares to each non-employee director pursuant to the 2013 Non-Employee Director Restricted Stock Plan. A total of 8,750 restricted shares were granted and the shares vest in six months from the date of grant . The Company recognized $0 compensation expense for the three months ended July 31, 2015. There is no compensation expense to be recorded in the future related to the 8,750 shares of restricted stock . The Company implemented an employee stock purchase plan (“ESPP”) for all eligible employees on February 1, 2014. The ESPP reserved 500,000 shares of common stock for issuance to employees. In addition, the number of shares of common stock reserved for issuance under the plan automatically increases on the first day of the Company’s fiscal years by 25,000 shares. For the three months ended July 31, 2015 and 2014, 4,147 and 3,790 shares , respectively were issued under the ESPP . T he Company recorded $5,590 and $9,666 in compensation expense for the three months ended July 31, 2015 and 2014, respectively. During the three months ended July 31, 2015 and 2014 the Company recorded $22,736 and $49,712 , respectively to stockholders’ equity relating to purchases under the ESPP.

Long-term Debt

Long-term Debt	3 Months Ended
	Jul. 31, 2015
Long-term Debt [Abstract]
Long-term Debt	Note D - Long-term Debt The Company has a senior secured credit facility with Wells Fargo, N.A. with a credit limit up to $30,000,000 and current term through October 31, 2017 . The facility allows the Company to choose among interest rates at which it may borrow funds. The credit facility is collateralized by substantially all of the domestically located assets of the Company and the Company has pledged 65% of its equity ownership interest in some of its foreign entities. The Company is required to be in compliance with several financial covenants. The facility allows the Company to choose among interest rates at which it may borrow funds. The interest rate is the bank fixed rate of two and one quarter percent plus one percent (effectively 3.25% at July 31 , 2015) or LIBOR plus two and one quarter percent (effectively 2.625% at July 31 , 2015). Interest is paid monthly. Under the senior secured credit facility, the Company may borrow up to the lesser of (i) $30,000,000 or (ii) an amount equal to the sum of 85% of the receivable borrowing base plus a percentage of the inventory borrowing base (collectively, “Borrowing Base”, which cannot exceed 50% of combined eligible receivables and inventory). Further, in specific circumstances, the Company is entitled to an over advance of up to $5,000,000 through October 31, 2015 ; however, at no time can the borrowings under the credit facility exceed $30,000,000 . The effective interest rate for the over advance facility was LIBOR plus two and three quarter percent. Further, the senior secured credit facility agreement was modified to allow specific foreign receivables to become eligible collateral. The receivable modification was effective until June 30, 2015. The Company agreed to an increase in the effective interest rate for the over advance facility and a $5,000 amendment fee. The interest rate for the over advance facility increased from LIBOR plus two and three quarter perc ent (effectively 3.125% at July 31 , 2015) or the bank fixed rate of two and one quarter percent plus one percen t (effectively 3.25% at July 31 , 2015) to LIBOR plus three and one half percent (effectively 3.875% at July 31 , 2015) or the bank fixed rate of two and one quarter percent plus one percent (effectively 3.25% a t July 31, 2015). As of July 31, 2015, there was a $21,959,943 ou tstanding balance and $7,938,610 of unused availability under the cred it facility agreement. At July 31 , 2015, the Company was in compliance with its financial covenants. The Company entered into a mortgage agreement on January 8, 2010, in the amount of $2,500,000 , with Wells Fargo, N.A. to refinance the property that serves as the Company’s corporate headquarters and its Illinois manufacturing facility. The Wells Fargo, N .A. note historically bore interest at a fixed rate of 6.42% per year and was amortized over a sixty month period. A final payment of approximately $2,000,000 was due on or before January 8, 2015 . On November 24, 2014, the Company refinanced the mortgage agreement with Wells Fargo, N.A. The note requires the Company to pay monthly principal payments in the amount of $9,500 , bears an interest rate of LIBOR plus two and one-quarter perc ent (effectively 2.625% at July 31 , 2015) and is payable over a sixty month period. Final payment of approximately $2,289,500 is due on or before November 8, 2019 . The ou tstanding balance as of July 31, 2015 was $2,774,000 . The Company entered into a mortgage agreement on October 24, 2013, in the amount of $1,275,000 , with Wells Fargo, N.A. to finance the property that serves as the Company’s engineering and design center in Elgin, Illinois. The Wells Fargo, N.A. note requires the Company to pay monthly principal payments in the amount of $4,250, bears interest at a fixed rate of 4.5% per year and is payable over a sixty month period. A final payment of approximately $1,030,000 is due on or before October 2018 . The outstanding balance a s of July 31, 2015 was $ 1,185,750 .

Goodwill And Other Intangible A

Goodwill And Other Intangible Assets	3 Months Ended
	Jul. 31, 2015
Goodwill And Other Intangible Assets [Abstract]
Goodwill And Other Intangible Assets	Note E - Goodwill and Other Intangible Assets Goodwill There were no changes in carrying amount of tax deductible goodwill in the amount of $3,222,899 for the first quarter ended July 31, 2015 and 2014, respectively. Other Intangible Assets Intangible assets subject to amortization are summarized as of July 31, 2015 as follows: Weighted Average Remaining Gross Amortization Carrying Accumulated Period (Years) Amount Amortization Other intangible assets – Able - $ $ Customer relationships – Able - Spitfire: Non-contractual customer relationships 11.8 Backlog - Trade names 16.8 Non-compete agreements 3.8 Patents 1.8 Total $ $ Note E - Goodwill and Other Intangible Assets - Continued Intangible assets subject to amortization are summarized as of April 30, 2015 , as follows: Weighted Average Remaining Gross Amortization Carrying Accumulated Period (Years) Amount Amortization Other intangible assets – Able - $ $ Customer relationships – Able - Spitfire: Non-contractual customer relationships 12.08 Backlog - Trade names 17.08 Non-compete agreements 4.08 Patents 2.08 Total $ $ Estimated aggregate amortization expense for intangible assets, which become fully amortized in 2032, for the remaining periods is as follows: For the remaining 9 months of the fiscal year ending April 30: 2016 $ For the fiscal year ending April 30: 2017 2018 2019 2020 Thereafter $ Amortization expense was $ 115,354 and $101,514 for the three months ended July 31, 2015 and 2014, respectively. Note E - Goodwill and Other Intangible Assets - Continued In conjunction with the May 2012 acquisition of Spitfire, the estimate of the fair value of the contingent consideration , $2,320,000 , was based on expected operating results through fiscal 2019 and the specific terms of when such consideration would be earned. Those terms provide for additional consideration to be paid based on a percentage of sales and pre-tax profits over those years in excess of certain minimums. Payments are made quarterly each year and adjusted after each year end audit. The Company made one payment in the quarter ended July 31, 2015 in the amount of $38,914 . The Company made four quarterly payments of $65,000 each in fiscal 2015 and 2014 and made three quarterly payments of $65,000 each in fiscal 2013. As of July 31, 2015, the Company had not materially changed its estimated aggregate consideration expected to be earned under this arrangement. Any changes in the Company’s estimate is reflected as a change in the contingent consideration liability and as additional charges or credits to selling and administrative expenses. As of July 31, 2015, the contingent consi deration liability was $1,460,071 .

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Jul. 31, 2015
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note - F - Commitments and Contingencies In November 2008, the Company received notice of an Equal Employment Opportunity Commission (“EEOC”) claim based on allegations of discrimination, sexual harassment, and retaliation filed by Maria Gracia, a former employee. On December 5, 2008, Ms. Gracia’s employment as an assembly supervisor was terminated after she knowingly permitted an assembly line to run leaded boards in a lead-free room with lead-free solder, contrary to the customer’s specifications and prohibited by Company policy. The use of lead-free solder for leaded components can lead to devices that fail and significant penalties to the Company and customers from regulatory bodies. The parts were quarantined and were not shipped. Ms. Gracia openly admitted to permitting this to take place. The EEOC declined to pursue Ms. Gracia’s charges against the Company but on July 26, 2011, Ms. Gracia received a right to sue letter from the EEOC. On October 25, 2011, Ms. Gracia filed suit against the Company in the U.S. District Court for the Northern District of Illinois under Title VII of the Civil Rights Act. The Complaint alleged claims that Ms. Gracia was subject to discrimination, harassment, and hostile work environment based on sex and national origin. In the Complaint, Ms. Gracia alleged that her supervisor engaged in a pattern of unwanted sexual advances and that he sent her emails that were offensive to her gender and national origin. Further, the Complaint also alleged that the Company retaliated by terminating Ms. Gracia’s employment after she filed her initial charge of discrimination with the EEOC. Ms. Gracia sought relief in the form of (a) damages sufficient to compensate her injuries; (b) attorney’s fees; (c) costs of the action; (d) and equitable remedies. In the court’s October 25, 2013 ruling on the Company’s Motion for Summary Judgment, the court limited plaintiff’s claims to two: (1) hostile work environment caused by gender (sexual harassment), and (2) retaliation. In December 2014, a jury trial found in favor of the Company with respect to the first claim and for the plaintiff with respect to the second claim, awarding plaintiff damages totaling $307,000 . In post-trial motions, the judge reduced the verdict to $300,000 . The judge will now consider plaintiff’s claim for equitable remedies and attorneys’ fees and costs, along with the Company’s motion for sanctions, as the plaintiff introduced knowingly altered documents as evidence during the trial which had not been previously disclosed. It is uncertain when these claims will be ruled upon by the court. Note - F - Commitments and Contingencies - Continued The plaintiff has withdrawn her offer to accept $607,000 in settlement of all claims. The Company intends to await the final judgment. The Company has not waived its right to appeal that judgment and will determine its next steps once it is entered. As of April 3 0 , 2015, the Company ha d accrued $300,000 in recognition of the jury’s verdict and the judge’s subsequent adjustment to that verdict. No additional accrual was made during the first quarter of fiscal year 2016. Even with a favorable ruling for the Company with regard to sanctions, the Company believes it will be required to pay plaintiff a minimum of $300,000 . It is not possible to predict where the judge may enter the judgment. From time to time the Company is involved in legal proceedings, claims or investigations that are incidental to the conduct of the Company’s business. In future periods, the Company could be subjected to cash cost or non-cash charges to earnings if any of these matters are resolved on unfavorable terms. However, although the ultimate outcome of any legal matter cannot be predicted with certainty, based on present information, including management’s assessment of the merits of any particular claim, the Company does not expect that these legal proceedings or claims will have any material adverse impact on its future consolidated financial position or results of operations.

Critical Accounting Policies

Critical Accounting Policies	3 Months Ended
	Jul. 31, 2015
Critical Accounting Policies [Abstract]
Critical Accounting Policies	Note G - Critical Accounting Policies Management Estimates and Uncertainties - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates made in preparing the consolidated financial statements include depreciation and amortization periods, the allowance for doubtful accounts, reserves for inventory and valuation of long-lived assets. Actual results could materially differ from these estimates. Revenue Recognition - Revenues from sales of the Company’s electronic manufacturing services business are recognized when the finished good product is shipped to the customer. In general, and except for consignment inventory, it is the Company ’s policy to recognize revenue and related costs when the finished goods have been shipped from our facilities, which is also the same point that title passes under the terms of the purchase order. Finished goods inventory for certain customers is shipped from the Company to an independent warehouse for storage or shipped directly to the customer and stored in a segregated part of the customer’s own facility. Upon the customer’s request for finished goods inventory, the inventory is shipped to the customer if the inventory was stored off-site, or transferred from the segregated part of the customer’s facility for consumption or use by the customer. The Company recognizes revenue upon such shipment or transfer. The Company does not earn a fee for such arrangements. The Company from time to time may ship finished goods from its facilities, which is also the same point that title passes under the terms of the purchase order, and invoice the customer at the end of the calendar month. This is done only in special circumstances to accommodate a specific customer. Further, from time to time customers request the Company hold finished goods after they have been invoiced to consolidate finished goods for shipping purposes. The Company generally provides a 90 day warranty for workmanship only, except for products with proprietary designs and does not have any Note G - Critical Accounting Policies - Continued installation, acceptance or sales incentives (although the Company has negotiated longer warranty terms in certain instances). The Company assembles and tests assemblies based on customers’ specifications. Historically, the amount of returns for workmanship issues has been de minimis under the Company’s standard or extended warranties. Inventories - Inventories are valued at the lower of cost or market. Cost is determined by an average cost method and the Company allocates labor and overhead to work-in-process and finished goods. In the event of an inventory write-down, the Company records expense to state the inventory at lower of cost or market. The Company establishes inventory reserves for valuation, shrinkage, and excess and obsolete inventory. The Company records provisions for inventory shrinkage based on historical experience to account for unmeasured usage or loss. Actual results differing from these estimates could significantly affect the Company’s inventories and cost of products sold. The Company records provisions for excess and obsolete inventories for the difference between the cost of inventory and its estimated realizable value based on assumptions about future product demand and market conditions. Actual product demand or market conditions could be different than that projected by management. Goodwill - Goodwill represents the purchase price in excess of the fair value of assets acquired in business combinations. The Company assesses goodwill for impairment at least annually in the absence of an indicator of possible impairment and immediately upon an indicator of possible impairment. T he Company is permitted the option to first assess qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that the fair value of any reporting unit is less than its corresponding carrying value. If, after assessing the totality of events and circumstances, the Company concludes that it is not more likely than not that the fair value of any reporting unit is less than its corresponding carrying value, then the Company is not required to take further action. However, if the Company concludes otherwise, then it is required to perform a quantitative impairment test, including computing the fair value of the reporting unit and comparing that value to its carrying value. If the fair value is less than its carrying value, a second step of the test is required to determine if recorded goodwill is impaired. The Company also has the option to bypass the qualitative assessment for goodwill in any period and proceed directly to performing the quantitative impairment test. The Company will be able to resume performing the qualitative assessment in any subsequent period. The Company performed its annual goodwill impairment test as of February 1, 2015 and determined that no impairment existed as of that date. Intangible Assets - Intangible assets are comprised of finite life intangible assets including patents, trade names, backlog, non-compete agreements, and customer relationships. Finite life intangible assets are amortized on a straight line or accelerated basis over their estimated useful lives of five years for patents, 20 years for trade names, 1 year for backlog, 7 years for non-compete agreements and 15 years for customer relationships. Note G - Critical Accounting Policies - Continued Impairment of Long-Lived Assets - The Company reviews long-lived assets, including amortizable intangible assets, for impairment. Property, machinery and equipment and finite life intangible assets are reviewed whenever events or changes in circumstances occur that indicate possible impairment. If events or changes in circumstances occur that indicate possible impairment, the Company’s impairment review is based on an undiscounted cash flow analysis at the lowest level at which cash flows of the long-lived assets are largely independent of other groups of its assets and liabilities. This analysis requires management judgment with respect to changes in technology, the continued success of product lines, and future volume, revenue and expense growth rates. The Company conducts annual reviews for idle and underutilized equipment, and reviews business plans for possible impairment. Impairment occurs when the carrying value of the assets exceeds the future undiscounted cash flows expected to be earned by the use of the asset group. When impairment is indicated, the estimated future cash flows are then discounted to determine the estimated fair value of the asset or asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value. As of July 31, 2015, there was no impairment of long-lived assets. Income Tax - The Company’s income tax expense, deferred tax assets and liabilities and reserves for unrecognized tax benefits reflect management’s best assessment of estimated future taxes to be paid. The Company is subject to income taxes in both the U.S. and several foreign jurisdictions. Significant judgments and estimates by management are required in determining the consolidated income tax expense assessment. Deferred income tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities, and are measured using the enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse. In evaluating the Company’s ability to recover its deferred tax assets within the jurisdiction from which they arise, the Company considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent financial operations. In projecting future taxable income, the Company begins with historical results and changes in accounting policies, and incorporates assumptions including the amount of future state, federal and foreign pretax operating income, the reversal of temporary differences, and the implementation of feasible and prudent tax planning strategies. These assumptions require significant judgment and estimates by management about the forecasts of future taxable income and are consistent with the plans and estimates the Company uses to manage the underlying businesses. In evaluating the objective evidence that historical results provide, the Company considers three years of cumulative operating income and/or loss. Valuation allowances are established when necessary to reduce deferred income tax assets to an amount more likely than not to be realized. The calculation of the Company’s tax liabilities involves dealing with uncertainties in the application of complex tax laws and regulations in a multitude of jurisdictions across its global operations. Changes in tax laws and rates could also affect recorded deferred tax assets and liabilities in the future. Management is not aware of any such changes that would have a material effect on the Company’s results of operations, cash flows or financial position. A tax benefit from an uncertain tax position may only be recognized when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. Note G - Critical Accounting Policies - Continued The Company adjusts its tax liabilities when its judgment changes as a result of the evaluation of new information not previously available. Due to the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from its current estimate of the tax liabilities. These differences will be reflected as increases or decreases to income tax expense in the period in which they are determined. New Accounting Standards: In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, "Revenue from Contracts with Customers." This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. This ASU is effective for annual reporting periods beginning after December 15, 2017 and early adoption is not permitted. Accordingly, the Company will adopt this ASU on May 1, 2018. Companies may use either a full retrospective or modified retrospective approach to adopt this ASU and the Company is currently evaluating which transition approach to use and the full impact this ASU will have on the Company’s future consolidated financial statements. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (Subtopic 205-40) . The amendments in this ASU provide guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. An entity’s management should evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued (or are available to be issued, when applicable). ASU 2014-15 is effective for the Company beginning with the annual reporting for fiscal 2016, and reports for interim and annual periods thereafter. Early adoption is permitted. The Company does not expect the impact of adoption of this ASU will have a material impact on its consolidated financial statements. In April 2015, the FASB issued ASU No. 2015- 03, “Interest — Imputation of Interest (Subtopic 835-30) — Simplifying the Presentation of Debt Issuance Costs.” ASU No. 2015-03 simplifies the presentation of debt issuance costs by requiring that these costs related to a recognized debt liability be presented in the statement of financial condition as a direct reduction from the carrying amount of that liability. ASU No. 2015-03 is effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. ASU No. 2015-03 is required to be applied retrospectively to all periods presented beginning in the year of adoption. Adoption will not materially affect the Company’s financial condition, results of operations, or cash flows. The Company does not expect the impact of adoption of this ASU to have a material impact on its consolidated financial statements.

Critical Accounting Policies (P

Critical Accounting Policies (Policy)	3 Months Ended
	Jul. 31, 2015
Critical Accounting Policies [Abstract]
Management Estimates And Uncertainties	Management Estimates and Uncertainties - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates made in preparing the consolidated financial statements include depreciation and amortization periods, the allowance for doubtful accounts, reserves for inventory and valuation of long-lived assets. Actual results could materially differ from these estimates.
Revenue Recognition	Revenue Recognition - Revenues from sales of the Company’s electronic manufacturing services business are recognized when the finished good product is shipped to the customer. In general, and except for consignment inventory, it is the Company ’s policy to recognize revenue and related costs when the finished goods have been shipped from our facilities, which is also the same point that title passes under the terms of the purchase order. Finished goods inventory for certain customers is shipped from the Company to an independent warehouse for storage or shipped directly to the customer and stored in a segregated part of the customer’s own facility. Upon the customer’s request for finished goods inventory, the inventory is shipped to the customer if the inventory was stored off-site, or transferred from the segregated part of the customer’s facility for consumption or use by the customer. The Company recognizes revenue upon such shipment or transfer. The Company does not earn a fee for such arrangements. The Company from time to time may ship finished goods from its facilities, which is also the same point that title passes under the terms of the purchase order, and invoice the customer at the end of the calendar month. This is done only in special circumstances to accommodate a specific customer. Further, from time to time customers request the Company hold finished goods after they have been invoiced to consolidate finished goods for shipping purposes. The Company generally provides a 90 day warranty for workmanship only, except for products with proprietary designs and does not have any Note G - Critical Accounting Policies - Continued installation, acceptance or sales incentives (although the Company has negotiated longer warranty terms in certain instances). The Company assembles and tests assemblies based on customers’ specifications. Historically, the amount of returns for workmanship issues has been de minimis under the Company’s standard or extended warranties.
Inventories	Inventories - Inventories are valued at the lower of cost or market. Cost is determined by an average cost method and the Company allocates labor and overhead to work-in-process and finished goods. In the event of an inventory write-down, the Company records expense to state the inventory at lower of cost or market. The Company establishes inventory reserves for valuation, shrinkage, and excess and obsolete inventory. The Company records provisions for inventory shrinkage based on historical experience to account for unmeasured usage or loss. Actual results differing from these estimates could significantly affect the Company’s inventories and cost of products sold. The Company records provisions for excess and obsolete inventories for the difference between the cost of inventory and its estimated realizable value based on assumptions about future product demand and market conditions. Actual product demand or market conditions could be different than that projected by management.
Goodwill	Goodwill - Goodwill represents the purchase price in excess of the fair value of assets acquired in business combinations. The Company assesses goodwill for impairment at least annually in the absence of an indicator of possible impairment and immediately upon an indicator of possible impairment. T he Company is permitted the option to first assess qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that the fair value of any reporting unit is less than its corresponding carrying value. If, after assessing the totality of events and circumstances, the Company concludes that it is not more likely than not that the fair value of any reporting unit is less than its corresponding carrying value, then the Company is not required to take further action. However, if the Company concludes otherwise, then it is required to perform a quantitative impairment test, including computing the fair value of the reporting unit and comparing that value to its carrying value. If the fair value is less than its carrying value, a second step of the test is required to determine if recorded goodwill is impaired. The Company also has the option to bypass the qualitative assessment for goodwill in any period and proceed directly to performing the quantitative impairment test. The Company will be able to resume performing the qualitative assessment in any subsequent period. The Company performed its annual goodwill impairment test as of February 1, 2015 and determined that no impairment existed as of that date.
Intangible Assets	Intangible Assets - Intangible assets are comprised of finite life intangible assets including patents, trade names, backlog, non-compete agreements, and customer relationships. Finite life intangible assets are amortized on a straight line or accelerated basis over their estimated useful lives of five years for patents, 20 years for trade names, 1 year for backlog, 7 years for non-compete agreements and 15 years for customer relationships.
Impairment Of Long-Lived Assets	Impairment of Long-Lived Assets - The Company reviews long-lived assets, including amortizable intangible assets, for impairment. Property, machinery and equipment and finite life intangible assets are reviewed whenever events or changes in circumstances occur that indicate possible impairment. If events or changes in circumstances occur that indicate possible impairment, the Company’s impairment review is based on an undiscounted cash flow analysis at the lowest level at which cash flows of the long-lived assets are largely independent of other groups of its assets and liabilities. This analysis requires management judgment with respect to changes in technology, the continued success of product lines, and future volume, revenue and expense growth rates. The Company conducts annual reviews for idle and underutilized equipment, and reviews business plans for possible impairment. Impairment occurs when the carrying value of the assets exceeds the future undiscounted cash flows expected to be earned by the use of the asset group. When impairment is indicated, the estimated future cash flows are then discounted to determine the estimated fair value of the asset or asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value. As of July 31, 2015, there was no impairment of long-lived assets.
Income Tax	Income Tax - The Company’s income tax expense, deferred tax assets and liabilities and reserves for unrecognized tax benefits reflect management’s best assessment of estimated future taxes to be paid. The Company is subject to income taxes in both the U.S. and several foreign jurisdictions. Significant judgments and estimates by management are required in determining the consolidated income tax expense assessment. Deferred income tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities, and are measured using the enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse. In evaluating the Company’s ability to recover its deferred tax assets within the jurisdiction from which they arise, the Company considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent financial operations. In projecting future taxable income, the Company begins with historical results and changes in accounting policies, and incorporates assumptions including the amount of future state, federal and foreign pretax operating income, the reversal of temporary differences, and the implementation of feasible and prudent tax planning strategies. These assumptions require significant judgment and estimates by management about the forecasts of future taxable income and are consistent with the plans and estimates the Company uses to manage the underlying businesses. In evaluating the objective evidence that historical results provide, the Company considers three years of cumulative operating income and/or loss. Valuation allowances are established when necessary to reduce deferred income tax assets to an amount more likely than not to be realized. The calculation of the Company’s tax liabilities involves dealing with uncertainties in the application of complex tax laws and regulations in a multitude of jurisdictions across its global operations. Changes in tax laws and rates could also affect recorded deferred tax assets and liabilities in the future. Management is not aware of any such changes that would have a material effect on the Company’s results of operations, cash flows or financial position. A tax benefit from an uncertain tax position may only be recognized when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. Note G - Critical Accounting Policies - Continued The Company adjusts its tax liabilities when its judgment changes as a result of the evaluation of new information not previously available. Due to the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from its current estimate of the tax liabilities. These differences will be reflected as increases or decreases to income tax expense in the period in which they are determined.
New Accounting Standards	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, "Revenue from Contracts with Customers." This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. This ASU is effective for annual reporting periods beginning after December 15, 2017 and early adoption is not permitted. Accordingly, the Company will adopt this ASU on May 1, 2018. Companies may use either a full retrospective or modified retrospective approach to adopt this ASU and the Company is currently evaluating which transition approach to use and the full impact this ASU will have on the Company’s future consolidated financial statements. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (Subtopic 205-40) . The amendments in this ASU provide guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. An entity’s management should evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued (or are available to be issued, when applicable). ASU 2014-15 is effective for the Company beginning with the annual reporting for fiscal 2016, and reports for interim and annual periods thereafter. Early adoption is permitted. The Company does not expect the impact of adoption of this ASU will have a material impact on its consolidated financial statements. In April 2015, the FASB issued ASU No. 2015- 03, “Interest — Imputation of Interest (Subtopic 835-30) — Simplifying the Presentation of Debt Issuance Costs.” ASU No. 2015-03 simplifies the presentation of debt issuance costs by requiring that these costs related to a recognized debt liability be presented in the statement of financial condition as a direct reduction from the carrying amount of that liability. ASU No. 2015-03 is effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. ASU No. 2015-03 is required to be applied retrospectively to all periods presented beginning in the year of adoption. Adoption will not materially affect the Company’s financial condition, results of operations, or cash flows. The Company does not expect the impact of adoption of this ASU to have a material impact on its consolidated financial statements.

Inventories, Net (Tables)

Inventories, Net (Tables)	3 Months Ended
	Jul. 31, 2015
Inventories, Net [Abstract]
Components Of Inventory	July 31, April 30, 2015 2015 Finished products $ $ Work-in-process Raw materials Less obsolescence reserve $ $

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Jul. 31, 2015
Earnings Per Share [Abstract]
Computation Of Basic And Diluted Earnings Per Share	Three Months Ended July 31, 2015 2014 Net income $ $ Weighted-average shares Basic Effect of dilutive stock options Diluted Basic earnings per share $ $ Diluted earnings per share $ $

Goodwill And Other Intangible16

Goodwill And Other Intangible Assets (Tables)	3 Months Ended
	Jul. 31, 2015
Goodwill And Other Intangible Assets [Abstract]
Summary Of Intangible Assets Subject To Amortization	Intangible assets subject to amortization are summarized as of July 31, 2015 as follows: Weighted Average Remaining Gross Amortization Carrying Accumulated Period (Years) Amount Amortization Other intangible assets – Able - $ $ Customer relationships – Able - Spitfire: Non-contractual customer relationships 11.8 Backlog - Trade names 16.8 Non-compete agreements 3.8 Patents 1.8 Total $ $ Note E - Goodwill and Other Intangible Assets - Continued Intangible assets subject to amortization are summarized as of April 30, 2015 , as follows: Weighted Average Remaining Gross Amortization Carrying Accumulated Period (Years) Amount Amortization Other intangible assets – Able - $ $ Customer relationships – Able - Spitfire: Non-contractual customer relationships 12.08 Backlog - Trade names 17.08 Non-compete agreements 4.08 Patents 2.08 Total $ $
Estimated Aggregate Amortization Expense	For the remaining 9 months of the fiscal year ending April 30: 2016 $ For the fiscal year ending April 30: 2017 2018 2019 2020 Thereafter $

Inventories, Net (Components Of

Inventories, Net (Components Of Inventory) (Details) - USD ($)	Jul. 31, 2015	Apr. 30, 2015
Inventories, Net [Abstract]
Finished products	$ 23,596,863	$ 24,316,404
Work-in-process	2,910,427	2,966,846
Raw materials	42,139,706	42,662,845
Total inventory, gross	68,646,996	69,946,095
Less obsolescence reserve	1,226,520	1,276,386
Total inventory, net	$ 67,420,476	$ 68,669,709

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - USD ($)	Oct. 01, 2014	Jun. 01, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jul. 31, 2015	Jul. 31, 2014	Apr. 30, 2015
Earnings Per Share [Line Items]
Common stock were outstanding						85,954	97,854
Options granted						0	0
Stock option expense						$ 4,559	$ 18,372
Stock-based compensation expense						10,149	28,038
Balance of unrecognized compensation expense related to stock options plans						17,148	35,235
Restricted stock expense							1,746
Stockholders' equity						57,895,078		$ 56,685,387
Employee Stock Purchase Plan [Member]
Earnings Per Share [Line Items]
Stock option expense						$ 5,590	$ 9,666
Shares of common stock for issuance						500,000
Additional shares of common stock for issuance each fiscal year						25,000
Shares issued						4,147	3,790
Stockholders' equity						$ 22,736	$ 49,712
Restricted Stock [Member]
Earnings Per Share [Line Items]
Shares of restricted stock granted		25,000
Shares of restricted stock vested			8,340	8,330	8,330
Restricted stock expense						0	1,746
Balance of unrecognized compensation expense related to restricted stock award						$ 0	$ 0
Restricted Stock [Member] | 2013 Non-Employee Director Restricted Stock Plan
Earnings Per Share [Line Items]
Shares of restricted stock granted	1,750
Shares of restricted stock vested						8,750
Restricted stock expense						$ 0
Restricted stock, vesting period						6 months
Balance of unrecognized compensation expense related to restricted stock award						$ 0

Earnings Per Share (Computation

Earnings Per Share (Computation Of Basic And Diluted Earnings Per Share) (Details) - USD ($)	3 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Earnings Per Share [Abstract]
Net income	$ 658,806	$ 16,810
Weighted-average shares, Basic	4,148,285	4,028,535
Weighted-average shares, Effect of dilutive stock options	45,372	77,092
Weighted-average shares, Diluted	4,193,657	4,105,627
Basic earnings per share	$ 0.16	$ 0
Diluted earnings per share	$ 0.16	$ 0

Long-Term Debt (Details)

Long-Term Debt (Details) - Wells Fargo Bank [Member] - USD ($)	Nov. 24, 2014	Oct. 24, 2013	Jan. 08, 2010	Jul. 31, 2015
Mortgage [Member]
Debt Instrument [Line Items]
Mortgage agreement, amount			$ 2,500,000
Mortgage agreement, amount repaid	$ 2,289,500		$ 2,000,000
Mortgage agreement, interest rate			6.42%
Mortgage agreement, maturity date	Nov. 8, 2019		Jan. 8, 2015
Mortgage agreement, monthly principal payment	$ 9,500
Mortgage agreement, payable period				60 months
Outstanding amount				$ 2,774,000
Debt, amortization period			60 months
Mortgage 2 [Member]
Debt Instrument [Line Items]
Mortgage agreement, amount		$ 1,275,000
Mortgage agreement, amount repaid		$ 1,030,000
Mortgage agreement, interest rate		4.50%
Mortgage agreement, maturity date		Oct. 1, 2018
Mortgage agreement, monthly principal payment		$ 4,250
Mortgage agreement, payable period				60 months
Outstanding amount				$ 1,185,750
LIBOR [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Mortgage agreement, interest rate				2.25%
Mortgage agreement, effective interest rate				2.625%
Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility credit limit				$ 30,000,000
Expiration date				Oct. 31, 2017
Equity ownership in foreign entities pledged as collateral, percentage				65.00%
Fixed interest rate				2.25%
Effective interest rate				3.25%
Variable interest rate				1.00%
Receivable borrowing base, percentage				85.00%
Inventory borrowing base, percentage				50.00%
Outstanding balance under the credit facility				$ 21,959,943
Unused availability under the credit facility				$ 7,938,610
Senior Secured Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Effective interest rate				2.625%
Variable interest rate				2.25%
Senior Secured Credit Facility Over Advance [Member]
Debt Instrument [Line Items]
Credit facility credit limit				$ 5,000,000
Expiration date				Oct. 31, 2015
Fixed interest rate				2.25%
Effective interest rate				3.25%
Variable interest rate				1.00%
Line of credit facility amendment fee				$ 5,000
Senior Secured Credit Facility Over Advance [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Effective interest rate				3.125%
Variable interest rate				2.75%
Amended Senior Secured Credit Facility Over Advance [Member]
Debt Instrument [Line Items]
Fixed interest rate				2.25%
Effective interest rate				3.25%
Variable interest rate				1.00%
Amended Senior Secured Credit Facility Over Advance [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Effective interest rate				3.875%
Variable interest rate				3.50%
Maximum [Member] | Senior Secured Credit Facility Over Advance [Member]
Debt Instrument [Line Items]
Credit facility credit limit				$ 30,000,000

Goodwill And Other Intangible21

Goodwill And Other Intangible Assets (Narrative) (Details)	3 Months Ended		9 Months Ended	12 Months Ended
	Jul. 31, 2015USD ($)item	Jul. 31, 2014USD ($)	Apr. 30, 2013USD ($)item	Apr. 30, 2015USD ($)item	Apr. 30, 2014USD ($)item	May. 31, 2012USD ($)
Goodwill And Other Intangible Assets [Abstract]
Changes in goodwill carrying amount	$ 0	$ 0
Goodwill	3,222,899	3,222,899		$ 3,222,899
Amortization expense	$ 115,354	$ 101,514
Estimated fair value of contingent consideration						$ 2,320,000
Number of quarterly payments for consideration with the Spitfire aquisition | item	1		3	4	4
Quarterly payment for business acquisition	$ 38,914		$ 65,000	$ 65,000	$ 65,000
Contingent consideration liability	$ 1,460,071

Goodwill And Other Intangible22

Goodwill And Other Intangible Assets (Summary Of Intangible Assets Subject To Amortization) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2015	Apr. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,912,000	$ 8,912,000
Accumulated Amortization	3,853,210	3,737,856
Able [Member] | Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	375,000	375,000
Accumulated Amortization	375,000	375,000
Able [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,395,000	2,395,000
Accumulated Amortization	$ 2,395,000	$ 2,395,000
Spitfire [Member] | Non-Contractual Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	11 years 9 months 18 days	12 years 29 days
Gross Carrying Amount	$ 4,690,000	$ 4,690,000
Accumulated Amortization	630,100	548,781
Spitfire [Member] | Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,000	22,000
Accumulated Amortization	$ 22,000	$ 22,000
Spitfire [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	16 years 9 months 18 days	17 years 29 days
Gross Carrying Amount	$ 980,000	$ 980,000
Accumulated Amortization	$ 155,154	$ 142,905
Spitfire [Member] | Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 9 months 18 days	4 years 29 days
Gross Carrying Amount	$ 50,000	$ 50,000
Accumulated Amortization	$ 22,610	$ 20,825
Spitfire [Member] | Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	1 year 9 months 18 days	2 years 29 days
Gross Carrying Amount	$ 400,000	$ 400,000
Accumulated Amortization	$ 253,346	$ 233,345

Goodwill And Other Intangible23

Goodwill And Other Intangible Assets (Estimated Aggregate Amortization Expense) (Details) - USD ($)	Jul. 31, 2015	Apr. 30, 2015
Goodwill And Other Intangible Assets [Abstract]
For the remaining 9 months of the fiscal year ending April 30, 2016	$ 355,545
For the fiscal year ending April 30, 2017	490,010
For the fiscal year ending April 30, 2018	435,043
For the fiscal year ending April 30, 2019	423,721
For the fiscal year ending April 30, 2020	411,406
Thereafter	2,943,065
Total	$ 5,058,790	$ 5,174,144

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	Apr. 30, 2015	Dec. 31, 2014	Jul. 31, 2015
Loss Contingencies [Line Items]
Damages awarded		$ 307,000
Reduced damages awarded		300,000
Damages sought, value		$ 607,000
Accrual loss contingency	$ 300,000		$ 0
Minimum [Member]
Loss Contingencies [Line Items]
Damages awarded			$ 300,000

Critical Accounting Policies (D

Critical Accounting Policies (Details) - USD ($)	Feb. 01, 2015	Jul. 31, 2015
Summary Of Critical Accounting Policies Line Items
Product warranty period		90 days
Goodwill impairment	$ 0
Long-lived assets impairment		$ 0
Patents [Member]
Summary Of Critical Accounting Policies Line Items
Estimated useful life		5 years
Trade Names [Member]
Summary Of Critical Accounting Policies Line Items
Estimated useful life		20 years
Backlog [Member]
Summary Of Critical Accounting Policies Line Items
Estimated useful life		1 year
Non-Compete Agreements [Member]
Summary Of Critical Accounting Policies Line Items
Estimated useful life		7 years
Customer Relationships [Member]
Summary Of Critical Accounting Policies Line Items
Estimated useful life		15 years