Rental Equipment (Details) - Schedule Of Rental Equipment - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule Of Rental Equipment [Abstract]
Rental equipment	$ 21,142	$ 21,134
Less accumulated depreciation	16,860	16,452
Net rental equipment	$ 4,282	$ 4,682

Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Name:	us-gaap_PropertyPlantAndEquipmentOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant