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Note 4 - Property and Equipment | 12 Months Ended
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Mar. 31, 2013
Property, Plant and Equipment Disclosure [Text Block] | 4. PROPERTY AND EQUIPMENT Property and equipment consisted of the following:
|  | March 31, |
|  | 2013 |  |  | 2012 |
Furniture, fixtures and improvements |  | $ | 5,822,028 |  |  | $ | 5,588,358 |
Flight equipment and rotables |  |  | 3,203,765 |  |  |  | 3,202,739 |
Equipment leased to customers |  |  | 2,042,776 |  |  |  | 1,381,727 |
|  |  | 11,068,569 |  |  |  | 10,172,824 |
Less accumulated depreciation |  |  | (7,596,030 | ) |  |  | (7,191,246 | )
Property and equipment, net |  | $ | 3,472,539 |  |  | $ | 2,981,578 |
The Company has historically leased deicers and other equipment to customers on a limited basis. In the current year ended March 31, 2013, while still not a significant part of the Company’s business, this activity has increased. As a result, the Company has elected to reclassify the equipment under operating leases from finished goods inventory to property and equipment. See cost of the leased equipment in the table above. As a result, inventory with a net book value of $1,642,000 and $1,092,000 at March 31, 2013 and 2012, respectively, has been reclassified from inventory to property and equipment.

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- Definition The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -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 Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
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