Borrowings Under Line of Credit Arrangements and Related Items (Tables)

3 Months Ended

Mar. 31, 2013

Borrowings Under Line of Credit Arrangement and Related Items (Tables) [Abstract]

Aggregate borrowings under the unsecured line of credit arrangements

		Three Months Ended March 31,
		2013		2012
Balance outstanding at quarter end		$	710,000	$	5,000
Maximum amount outstanding at any month end		$	780,000	$	897,000
Average amount outstanding (total of daily
	principal balances divided by days in period)	$	723,444	$	480,703
Weighted average interest rate (actual interest
	expense divided by average borrowings outstanding)		1.38%		1.65%