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Accounting Policies, by Policy (Policies) | 12 Months Ended
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Mar. 31, 2013
Consolidation, Policy [Policy Text Block] | Principles of Consolidation – The consolidated financial statements include the accounts of the Company and subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block] | Accounting Estimates – The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported and disclosed. Actual results could differ from those estimates.
Concentration Risk, Credit Risk, Policy [Policy Text Block] | Concentration of Credit Risk – The Company’s potential exposure to concentrations of credit risk consists of trade accounts and notes receivable, and bank deposits. Accounts receivable are normally due within 30 days and the Company performs periodic credit evaluations of its customers’ financial condition. Notes receivable payments are normally due monthly. The required allowance for doubtful accounts is determined using information such as customer credit history, industry information, credit reports, customer financial condition and the collectability of past-due outstanding accounts receivables. The estimates can be affected by changes in the financial strength of the aviation industry, customer credit issues or general economic conditions. At various times throughout the year, the Company had deposits with banks in excess of amounts covered by federal depository insurance and investments in corporate notes that are not covered by insurance. A majority of the Company’s revenues are concentrated in the aviation industry and revenues can be materially affected by current economic conditions and the price of certain supplies such as fuel, the cost of which is passed through to the Company’s cargo customer. The Company has customer concentrations in two areas of operations, overnight air cargo which provides service to one major customer and ground support equipment sales which provides equipment and services to approximately 125 customers in 31 countries, one of which is considered a major customer. The loss of a major customer would have a material impact on the Company’s results of operations. See Note 11 “Major Customers”.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents – Cash equivalents consist of liquid investments with maturities of three months or less when purchased.
Inventory, Policy [Policy Text Block] | Inventories – Inventories related to the Company’s manufacturing operations are carried at the lower of cost (first in, first out) or market. When finished goods units are leased to customers under operating leases, the units are transferred to Property and Equipment. Aviation parts and supplies inventories are carried at the lower of average cost or market. Consistent with industry practice, the Company includes expendable aircraft parts and supplies in current assets, although a certain portion of these inventories may not be used or sold within one year.
Property, Plant and Equipment, Policy [Policy Text Block] | Property and Equipment – Property and equipment is stated at cost or, in the case of equipment under capital leases, the present value of future lease payments. Rotable parts represent aircraft parts which are repairable, capitalized and depreciated over their estimated useful lives. Depreciation and amortization are provided on a straight-line basis over the asset’s useful life. Useful lives range from three years for computer equipment, seven years for flight equipment and ten years for deicers and other equipment leased to customers. The Company assesses long-lived assets used in operations for impairment when events and circumstances indicate the assets may be impaired and the undiscounted cash flows estimated to be generated by those assets are less than their carrying amount. In the event it is determined that the carrying values of long-lived assets are in excess of the fair value of those assets, the Company then will write-down the value of the assets to fair value.
Revenue Recognition, Policy [Policy Text Block] | Revenue Recognition – Cargo revenue is recognized upon completion of contract terms. Maintenance and ground support services revenue is recognized when the service has been performed. Revenue from product sales is recognized when contract terms are completed and ownership has passed to the customer.
Revenue Recognition Leases, Operating [Policy Text Block] | Operating Expenses Reimbursed by Customer – The Company, under the terms of its overnight air cargo dry-lease service contracts, passes through to its air cargo customer certain cost components of its operations without markup. The cost of flight crews, fuel, landing fees, outside maintenance, parts and certain other direct operating costs are included in operating expenses and billed to the customer, at cost, and included in overnight air cargo revenue on the accompanying statements of income.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] | Stock Based Compensation – The Company maintains a stock option plan for the benefit of certain eligible employees and directors of the Company. The Company recognizes compensation expense on stock options based on their fair values over the requisite service period. The compensation cost we record for these awards is based on their fair value on the date of grant. The Company has used the Black Scholes option-pricing model as its method for valuing stock options. The key assumptions for this valuation method include the expected term of the option, stock price volatility, risk-free interest rate and dividend yield. Many of these assumptions are judgmental and highly sensitive in the determination of compensation expense.
Standard Product Warranty, Policy [Policy Text Block] | Warranty Reserves – The Company warranties its ground equipment products for up to a three-year period from date of sale. Product warranty reserves are recorded at time of sale based on the historical average warranty cost and are adjusted as actual warranty cost becomes known. Product warranty reserve activity is as follows:
|  | Year Ended March 31, |
|  | 2013 |  |  | 2012 |
Beginning Balance |  | $ | 253,000 |  |  | $ | 162,000 |
Amounts charged to expense |  |  | 184,000 |  |  |  | 489,000 |
Actual warranty costs paid |  |  | (228,000 | ) |  |  | (398,000 | )
Ending Balance |  | $ | 209,000 |  |  | $ | 253,000
Income Tax, Policy [Policy Text Block] | Income Taxes – Income taxes have been provided using the liability method. Deferred income taxes reflect the net affects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax reporting purposes using enacted rates expected to be in effect during the year in which the basis differences reverse.
Reclassification, Policy [Policy Text Block] | Reclassifications – Certain reclassifications have been made to the fiscal 2012 amounts to conform to the current year presentation. As discussed in Note 4, the Company reclassified certain equipment under operating leases to customers from finished goods inventory to property and equipment.

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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Technical Practice Aid (TPA) -Number 2110 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 + Details
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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. 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- Definition Disclosure of accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 22 -Paragraph 12, 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section C -Paragraph 5 -Chapter 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Disclosure of accounting policy for standard warranties including the methodology for measuring the liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 14 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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