Note 1 - Nature of Operations and Basis of Presentation (Details Textual)	93 Months Ended	99 Months Ended
Mar. 31, 2016	Mar. 31, 2016
Number of Businesses Acquired	57	57
Number of Service Centers	71	71
Number of States in which Entity Operates	50	50

The number of states the entity operates in as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant