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Income Taxes (Tables) | 12 Months Ended
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Mar. 31, 2017
Income Tax Disclosure [Abstract] |
Components of Income Before Income Taxes | An analysis of the components of income before income taxes is presented below:
|  | Year ended March 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
United States |  | $ | 7,346 |  |  | $ | 8,301 |  |  | $ | 20,799 |
China |  |  | (297 | ) |  |  | 429 |  |  |  | 953 |
|  | $ | 7,049 |  |  | $ | 8,730 |  |  | $ | 21,752 |
The Provision for Income Taxes Related to Income Before Income Taxes | The provision for income taxes related to income before income taxes consists of:
|  | Year ended March 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Current: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 2,834 |  |  | $ | 3,795 |  |  | $ | 6,616 |
State |  |  | 118 |  |  |  | 54 |  |  |  | 165 |
Foreign |  |  | (42 | ) |  |  | 272 |  |  |  | 79 |
|  |  | 2,910 |  |  |  | 4,121 |  |  |  | 6,860 |
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | (861 | ) |  |  | (1,319 | ) |  |  | (46 | )
State |  |  | 30 |  |  |  | (82 | ) |  |  | (184 | )
Foreign |  |  | (27 | ) |  |  | (154 | ) |  |  | 173 |
Changes in valuation allowance |  |  | (26 | ) |  |  | 33 |  |  |  | 214 |
|  |  | (884 | ) |  |  | (1,522 | ) |  |  | 157 |
Total provision for income taxes |  | $ | 2,026 |  |  | $ | 2,599 |  |  | $ | 7,017 |
Reconciliation of the Provision for Income Taxes | The reconciliation of the provision calculated using the U.S. federal tax rate with the provision for income taxes presented in the consolidated financial statements is as follows:
|  | Year ended March 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Provision for income taxes at federal rate |  | $ | 2,467 |  |  | $ | 3,055 |  |  | $ | 7,613 |
State taxes |  |  | 129 |  |  |  | (28 | ) |  |  | (103 | )
Charges not deductible for income tax purposes |  |  | 39 |  |  |  | 64 |  |  |  | 79 |
Recognition of tax benefit generated by qualified production activities deduction |  |  | (209 | ) |  |  | (245 | ) |  |  | (382 | )
Research and development tax credits |  |  | (196 | ) |  |  | (232 | ) |  |  | (180 | )
Valuation allowance |  |  | (26 | ) |  |  | 33 |  |  |  | 214 |
Difference in federal rate |  |  | (194 | ) |  |  |  |  |  |  |  |
Other |  |  | 16 |  |  |  | (48 | ) |  |  | (224 | )
Provision for income taxes |  | $ | 2,026 |  |  | $ | 2,599 |  |  | $ | 7,017 |
Summary of Net Deferred Income Tax Liability | The net deferred income tax liability recorded in the Consolidated Balance Sheets results from differences between financial statement and tax reporting of income and deductions. A summary of the composition of the Company's net deferred income tax liability follows:
|  | March 31, |
|  | 2017 |  |  | 2016 |
Depreciation |  | $ | (2,201 | ) |  | $ | (2,352 | )
Accrued compensation |  |  | 242 |  |  |  | 247 |
Prepaid pension asset |  |  | (845 | ) |  |  | 355 |
Accrued pension liability |  |  | 175 |  |  |  | 138 |
Accrued postretirement benefits |  |  | 299 |  |  |  | 309 |
Compensated absences |  |  | 601 |  |  |  | 571 |
Inventories |  |  | 1,045 |  |  |  | 905 |
Warranty liability |  |  | 191 |  |  |  | 242 |
Accrued expenses |  |  | 937 |  |  |  | 702 |
Stock-based compensation |  |  | 548 |  |  |  | 485 |
Intangible assets |  |  | (5,097 | ) |  |  | (5,159 | )
New York State investment tax credit |  |  | 959 |  |  |  | 985 |
Other |  |  | 79 |  |  |  | 11 |
|  |  | (3,067 | ) |  |  | (2,561 | )
Less: Valuation allowance |  |  | (959 | ) |  |  | (985 | )
Total |  | $ | (4,026 | ) |  | $ | (3,546 | )

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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