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Note 1 - Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Years ended December 31, |
|  | 2021 |  |  | 2020 |
FACILITIES: |  |  |  |  |  |  |  |
Maintenance revenues |  | $ | 3,540 |  |  | $ | 3,749 |
Equipment sales |  |  | 2,039 |  |  |  | 1,980 |
Deployment and other services |  |  | 1,496 |  |  |  | 3,274 |
Total facilities revenues |  |  | 7,075 |  |  |  | 9,003 |
SYSTEMS INTEGRATION: |  |  |  |  |  |  |  |
Integration services |  |  | 5,668 |  |  |  | 7,286 |
Procurement services |  |  | 14,667 |  |  |  | 28,773 |
Total systems integration revenues |  |  | 20,335 |  |  |  | 36,059 |
TOTAL REVENUES |  | $ | 27,410 |  |  | $ | 45,062 |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | 2021 |  |  | 2020 |
U.S.-based IT OEM |  |  | 95 | % |  |  | 97 | %
Allowance for Doubtful Accounts [Table Text Block] |
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |
Balance at beginning of year |  | $ | 7 |  |  | $ | 8 |
Additions charged to expense |  |  | - |  |  |  | - |
Recovery of amounts previously reserved |  |  | - |  |  |  | - |
Amounts written off |  |  | - |  |  |  | 1 |
Balance at end of year |  | $ | 7 |  |  | $ | 7 |

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