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Selected Quarterly Data (Unaudited) (Tables) | 12 Months Ended
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Sep. 30, 2021
Selected Quarterly Financial Information [Abstract] |
Schedule of Selected Unaudited Consolidated Quarterly Financial Information | The following table sets forth selected unaudited consolidated quarterly financial information for the years ended September 30, 2021 and 2020 (in thousands, except percentages and per share amounts):
|  | Fiscal Year 2021 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
Revenue, net of returns and allowances |  | $ | 17,975 |  |  | $ | 19,790 |  |  | $ | 23,100 |  |  | $ | 24,340 |
Cost of sales |  |  | 10,463 |  |  |  | 12,062 |  |  |  | 13,021 |  |  |  | 15,129 |
Gross profit |  |  | 7,512 |  |  |  | 7,728 |  |  |  | 10,079 |  |  |  | 9,211 |
Selling, general and administrative |  |  | 5,213 |  |  |  | 5,688 |  |  |  | 7,281 |  |  |  | 6,558 |
Research, development and engineering |  |  | 1,245 |  |  |  | 1,869 |  |  |  | 1,523 |  |  |  | 1,342 |
Restructuring charges |  |  | — |  |  |  | — |  |  |  | 71 |  |  |  | 15 |
Operating income |  |  | 1,054 |  |  |  | 171 |  |  |  | 1,204 |  |  |  | 1,296 |
Interest (expense) income and other, net |  |  | (255 | ) |  |  | 73 |  |  |  | (155 | ) |  |  | 46 |
Income from continuing operations before income taxes |  |  | 799 |  |  |  | 244 |  |  |  | 1,049 |  |  |  | 1,342 |
Income tax provision |  |  | 80 |  |  |  | 490 |  |  |  | 680 |  |  |  | 676 |
Net income (loss) |  | $ | 719 |  |  | $ | (246 | ) |  | $ | 369 |  |  | $ | 666 |
Gross margin |  |  | 41.8 | % |  |  | 39.1 | % |  |  | 43.6 | % |  |  | 37.8 | %
Operating margin |  |  | 5.9 | % |  |  | 0.9 | % |  |  | 5.2 | % |  |  | 5.3 | %
Income (Loss) Per Share: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) per basic share |  | $ | 0.05 |  |  | $ | (0.02 | ) |  | $ | 0.03 |  |  | $ | 0.05 |
Weighted average shares outstanding - basic |  |  | 14,072 |  |  |  | 14,151 |  |  |  | 14,176 |  |  |  | 14,190 |
Net income (loss) per diluted share |  | $ | 0.05 |  |  | $ | (0.02 | ) |  | $ | 0.03 |  |  | $ | 0.05 |
Weighted average shares outstanding - diluted |  |  | 14,117 |  |  |  | 14,151 |  |  |  | 14,373 |  |  |  | 14,387 |
|  | Fiscal Year 2020 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
Revenue, net of returns and allowances |  | $ | 20,692 |  |  | $ | 14,460 |  |  | $ | 15,227 |  |  | $ | 15,084 |
Cost of sales |  |  | 12,518 |  |  |  | 9,102 |  |  |  | 9,276 |  |  |  | 10,126 |
Gross profit |  |  | 8,174 |  |  |  | 5,358 |  |  |  | 5,951 |  |  |  | 4,958 |
Selling, general and administrative |  |  | 5,915 |  |  |  | 5,415 |  |  |  | 4,804 |  |  |  | 5,263 |
Research, development and engineering |  |  | 622 |  |  |  | 915 |  |  |  | 899 |  |  |  | 876 |
Restructuring charges |  |  | — |  |  |  | — |  |  |  | 217 |  |  |  | — |
Operating income (loss) |  |  | 1,637 |  |  |  | (972 | ) |  |  | 31 |  |  |  | (1,181 | )
Loss on sale of subsidiary |  |  | (2,793 | ) |  |  | — |  |  |  | — |  |  |  | — |
Interest (expense) income and other, net |  |  | (70 | ) |  |  | 595 |  |  |  | (13 | ) |  |  | (350 | )
(Loss) income from continuing operations before income taxes |  |  | (1,226 | ) |  |  | (377 | ) |  |  | 18 |  |  |  | (1,531 | )
Income tax provision |  |  | 41 |  |  |  | 166 |  |  |  | 90 |  |  |  | 494 |
Loss from continuing operations, net of tax |  |  | (1,267 | ) |  |  | (543 | ) |  |  | (72 | ) |  |  | (2,025 | )
Loss from discontinued operations, net of tax |  |  | (665 | ) |  |  | (11,151 | ) |  |  | — |  |  |  | — |
Net loss |  | $ | (1,932 | ) |  | $ | (11,694 | ) |  | $ | (72 | ) |  | $ | (2,025 | )
Gross margin |  |  | 39.5 | % |  |  | 37.1 | % |  |  | 39.1 | % |  |  | 32.9 | %
Operating margin |  |  | 7.9 | % |  |  | (6.7 | )% |  |  | 0.2 | % |  |  | (7.8 | )%
Loss Per Basic Share: |  |  |  |  |  |  |  |  |  |  |  |
Basic loss per share from continuing operations |  | $ | (0.09 | ) |  | $ | (0.04 | ) |  | $ | (0.01 | ) |  | $ | (0.14 | )
Basic loss per share from discontinued operations |  | $ | (0.05 | ) |  | $ | (0.79 | ) |  | $ | — |  |  | $ | — |
Net loss per basic share |  | $ | (0.14 | ) |  | $ | (0.83 | ) |  | $ | (0.01 | ) |  | $ | (0.14 | )
Loss Per Diluted Share: |  |  |  |  |  |  |  |  |  |  |  |
Diluted loss per share from continuing operations |  | $ | (0.09 | ) |  | $ | (0.04 | ) |  | $ | (0.01 | ) |  | $ | (0.14 | )
Diluted loss per share from discontinued operations |  | $ | (0.05 | ) |  | $ | (0.79 | ) |  | $ | — |  |  | $ | — |
Net loss per diluted share |  | $ | (0.14 | ) |  | $ | (0.83 | ) |  | $ | (0.01 | ) |  | $ | (0.14 | )
Weighted average shares outstanding - basic |  |  | 14,290 |  |  |  | 14,150 |  |  |  | 14,155 |  |  |  | 14,052 |
Weighted average shares outstanding - diluted |  |  | 14,290 |  |  |  | 14,150 |  |  |  | 14,155 |  |  |  | 14,052 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124502072&loc=d3e1280-108306 + Details
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