XML 42 R32.htm IDEA: XBRL DOCUMENT v3.4.0.3

Note 1 - General (Details Textual) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
December 31, 2015 [Member] | Reclassification from Other Liabilities to Surplus [Member]
Prior Period Reclassification Adjustment	$ 0.7

X

- Definition

The amount of a reclassification adjustment made to prior period financial statement amounts.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_CreationDateAxis=usbi_December312015Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=usbi_ReclassificationFromOtherLiabilitiesToSurplusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: