XML 62 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1

Note 12 - Business Segment Information - Revenue by Business Segment Sector (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Revenues	$ 22,864	$ 19,939	$ 45,933	$ 41,974
Revenue, percentage
Commercial [Member]
Revenues	$ 15,680	$ 10,037	$ 30,668	$ 23,922
Revenue, percentage	69.00%	50.00%	67.00%	57.00%
Government & Defense [Member]
Revenues	$ 7,184	$ 9,902	$ 15,265	$ 18,052
Revenue, percentage	31.00%	50.00%	33.00%	43.00%
Battery & Energy Products Segment [Member]
Revenues	$ 17,831	$ 16,880	$ 35,055	$ 34,359
Battery & Energy Products Segment [Member] | Commercial [Member]
Revenues	10,647	7,248	20,062	16,665
Battery & Energy Products Segment [Member] | Government & Defense [Member]
Revenues	7,184	9,632	14,993	17,694
Communications Systems Segment [Member]
Revenues	5,033	3,059	10,878	7,615
Communications Systems Segment [Member] | Commercial [Member]
Revenues	5,033	2,789	10,606	7,257
Communications Systems Segment [Member] | Government & Defense [Member]
Revenues		$ 270	$ 272	$ 358

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, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

+ Details

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

X

- Details

Name:	srt_MajorCustomersAxis=ulbi_CommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_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: