NOTES PAYABLE TO BANKS (Detail Textuals 1) (Revolving credit facility)	9 Months Ended
	Sep. 30, 2012
Minimum
Line of Credit Facility [Line Items]
Range of line of credit facility	0.25%
Maximum
Line of Credit Facility [Line Items]
Range of line of credit facility	0.35%
Option 1 A
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.00%
Description of reference rate basis	prime rate
Option 1 A | Minimum
Line of Credit Facility [Line Items]
Range of line of credit facility	0.25%
Option 1 A | Maximum
Line of Credit Facility [Line Items]
Range of line of credit facility	1.25%
Option 1 B
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Description of reference rate basis	Federal Funds Rate
Option 1 B | Minimum
Line of Credit Facility [Line Items]
Range of line of credit facility	0.25%
Option 1 B | Maximum
Line of Credit Facility [Line Items]
Range of line of credit facility	1.25%
Option 1 C
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Description of reference rate basis	LIBOR
Option 1 C | Minimum
Line of Credit Facility [Line Items]
Range of line of credit facility	0.25%
Option 1 C | Maximum
Line of Credit Facility [Line Items]
Range of line of credit facility	1.25%
Option 2 | Eurodollar Borrowings
Line of Credit Facility [Line Items]
Description of reference rate basis	Adjusted LIBOR
Option 2 | Eurodollar Borrowings | Minimum
Line of Credit Facility [Line Items]
Range of line of credit facility	1.25%
Option 2 | Eurodollar Borrowings | Maximum
Line of Credit Facility [Line Items]
Range of line of credit facility	2.25%