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Schedule of Remaining Performance Obligations Expected to be Recognized (Details) | Jun. 30, 2021 USD ($)
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Remaining performance obligations related to engineering only paid contracts | $ 2,038,000
Remaining performance obligations related to partial equipment paid contracts | 5,949,000
Total remaining performance obligations | 7,987,000
2021 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Remaining performance obligations related to engineering only paid contracts | 762,000
Remaining performance obligations related to partial equipment paid contracts | 5,943,000
Total remaining performance obligations | 6,705,000
2022 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Remaining performance obligations related to engineering only paid contracts | 1,276,000
Remaining performance obligations related to partial equipment paid contracts | 6,000
Total remaining performance obligations | $ 1,282,000

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