XML 27 R6.htm IDEA: XBRL DOCUMENT v2.4.0.8

Consolidated Statements of Shareholders' Equity (Unaudited) (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement Of Stockholders' Equity [Abstract]
Dividend common stock, Per share amount	$ 0.035	$ 0.025

X

- Definition

Dividend common stock per share amount.

+ References

No definition available.

+ Details

Name:	rbnf_DividendCommonStockPerShareAmount
Namespace Prefix:	rbnf_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration