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Note 3 - Revenue (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Year Ended December 31, 2022 |
|  | Over time |  |  | Point in time |  |  | Total |
Energy |  | $ | 9,094 |  |  | $ | 58 |  |  | $ | 9,152 |
Aerospace |  |  | 95 |  |  |  | 1,527 |  |  |  | 1,622 |
Industrial |  |  | 5,961 |  |  |  | 4,856 |  |  |  | 10,817 |
Research |  |  | 2,807 |  |  |  | 1,415 |  |  |  | 4,222 |
Total |  | $ | 17,957 |  |  | $ | 7,856 |  |  | $ | 25,813 |
|  | Year Ended December 31, 2021 |
|  | Over time |  |  | Point in time |  |  | Total |
Energy |  | $ | 1,141 |  |  | $ | - |  |  | $ | 1,141 |
Aerospace |  |  | 386 |  |  |  | 2,214 |  |  |  | 2,600 |
Industrial |  |  | 4,989 |  |  |  | 3,863 |  |  |  | 8,852 |
Research |  |  | 2,294 |  |  |  | 1,560 |  |  |  | 3,854 |
Total |  | $ | 8,810 |  |  | $ | 7,637 |  |  | $ | 16,447 |
Schedule Of Cost And Estimated Earnings In Excess Of Billings [Table Text Block] |
|  | 2022 |  |  | 2021 |
Costs incurred on contracts in progress |  | $ | 14,390 |  |  | $ | 7,419 |
Estimated earnings |  |  | 10,926 |  |  |  | 5,071 |
|  |  | 25,316 |  |  |  | 12,490 |
Billings to date |  |  | (26,925 | ) |  |  | (11,409 | )
|  |  | (1,609 | ) |  |  | 1,081 |
Deferred revenue related to non-systems contracts |  |  | (263 | ) |  |  | (193 | )
|  | $ | (1,872 | ) |  | $ | 888 |
Included in accompanying consolidated balance sheets under the following captions (in thousands): |  |  |  |  |  |  |  |
Contract assets |  | $ | 2,170 |  |  | $ | 2,538 |
Contract liabilities |  | $ | 4,042 |  |  | $ | 1,650 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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