XML 76 R63.htm IDEA: XBRL DOCUMENT v3.6.0.2

Note 11 - Business Segment Information - Revenue by Business Segment Sector (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenue	$ 82,460	$ 76,427
Revenue, percentage
Commercial [Member]
Revenue	$ 40,886	$ 33,367
Revenue, percentage	50.00%	44.00%
Government & Defense [Member]
Revenue	$ 41,574	$ 43,060
Revenue, percentage	50.00%	56.00%
Battery & Energy Products Segment [Member]
Revenue	$ 64,753	$ 65,272
Battery & Energy Products Segment [Member] | Commercial [Member]
Revenue	40,886	33,367
Battery & Energy Products Segment [Member] | Government & Defense [Member]
Revenue	23,867	31,905
Communications Systems Segment [Member]
Revenue	17,707	11,155
Communications Systems Segment [Member] | Commercial [Member]
Revenue
Communications Systems Segment [Member] | Government & Defense [Member]
Revenue	$ 17,707	$ 11,155

X

- Definition

The percentage of total revenue for the period.

+ References

No definition available.

+ Details

Name:	ulbi_RevenueTotalPercentage
Namespace Prefix:	ulbi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_MajorCustomersAxis=ulbi_CommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MajorCustomersAxis=ulbi_GovernmentDefenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ulbi_BatteryEnergyProductsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ulbi_CommunicationsSystemsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: