XML 26 R17.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note 1 - Summary of Operations and Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Notes Tables |
Property, Plant and Equipment, Estimated Useful Life [Table Text Block] |
Buildings |  |  | 10 | – | 20 |
Machinery and Equipment |  |  | 5 | – | 10 |
Furniture and Fixtures |  |  | 3 | – | 10 |
Computer Hardware and Software |  |  | 3 | – | 5 |
Leasehold Improvements |  |  | Lesser of useful life or lease term |

X
- Definition The tabular disclosure of estimated useful life for property, plant and equipment. + References No definition available. + Details
Name: | ulbi_PropertyPlantAndEquipmentEstimatedUsefulLifeTableTextBlock
Namespace Prefix: | ulbi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration