NOTES PAYABLE TO BANKS (Detail Textuals 3) (Interest Rate Swap, USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2012	Dec. 31, 2008
Interest Rate Swap
Line of Credit Facility [Line Items]
Amount of variable-rate debt to a fixed rate basis under interest rate swap agreement		$ 50
Fixed interest rate		2.07%
Description of reference rate basis	LIBOR

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant