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Income Taxes (Tables) | 12 Months Ended
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Feb. 28, 2019
Income Tax Disclosure [Abstract] |
Income tax reconciliation |
|  | February 28, |
|  | 2019 |  |  | 2018 |
Expected federal income tax |  | $ | 38,101 |  |  | $ | 156,421 |
State tax, net of federal |  |  | 11,430 |  |  |  | 24,383 |
Research and development tax credits |  |  | (19,588 | ) |  |  | (57,994 | )
Under accrual of prior year state taxes |  |  | — |  |  |  | 40,793 |
Change in recapture tax rate from 39.3% to 27.3% |  |  | — |  |  |  | 15,343 |
Permanent timing difference |  |  | 2,272 |  |  |  | 33,107 |
Change in valuation allowances |  |  | (36,425 | ) |  |  | (159,300 | )
Other adjustments |  |  | 24,057 |  |  |  | 39,103 |
Income tax expense |  | $ | 19,847 |  |  | $ | 91,856 |
Deferred tax asset and liability components |
|  | February 28, |
|  | 2019 |  |  | 2018 |
Deferred tax asset |  |  |  |  |  |  |  |
Inventory |  | $ | 74,000 |  |  | $ | 104,800 |
Allowance for accounts receivable |  |  | 13,000 |  |  |  | 18,100 |
Accrued expenses and other |  |  | 37,000 |  |  |  | 111,200 |
Research tax credits |  |  | 208,000 |  |  |  | 208,300 |
Valuation allowance |  |  | — |  |  |  | (46,000 | )
Deferred tax asset – Long Term |  |  | 332,000 |  |  |  | 396,400 |
Deferred tax liability |  |  |  |  |  |  |  |
Intangible asset amortization |  |  | (25,000 | ) |  |  | (25,000 | )
Building and leasehold depreciation |  |  | (346,000 | ) |  |  | (360,400 | )
Deferred tax liability – Long Term |  | $ | (371,000 | ) |  | $ | (385,400 | )

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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