Schedule of Investments (Details) - Condensed Consolidated Schedule of Investments (Securities) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Fair Value	$ 146,825	$ 260,744
Corporate Bond Securities [Member] | National Australia Bank, Floating Note [Member]
Schedule of Investments [Line Items]
Face Value		1,500,000
Maturity Date Range End		Jan. 08, 2013
Percentage of Net Assets		6.45%
Fair Value		1,500,105
Corporate Bond Securities [Member] | HSBC [Member]
Schedule of Investments [Line Items]
Face Value	750,000
Maturity Date Range End	Jul. 15, 2013
Percentage of Net Assets	3.86%
Fair Value	750,990
Corporate Bond Securities [Member] | Citi Bank Corp NT [Member]
Schedule of Investments [Line Items]
Face Value	800,000
Maturity Date Range End	Aug. 19, 2013
Percentage of Net Assets	4.14%
Fair Value	805,904
Corporate Bond Securities [Member] | Prudential Financial, Inc. [Member]
Schedule of Investments [Line Items]
Face Value	750,000
Maturity Date Range End	Jul. 15, 2013
Percentage of Net Assets	3.85%
Fair Value	750,690
Corporate Bond Securities [Member]
Schedule of Investments [Line Items]
Face Value	2,300,000	1,500,000
Percentage of Net Assets	11.85%	6.45%
Fair Value	2,307,584	1,500,105
Commercial Paper [Member] | Suncorp Metway Ltd. [Member]
Schedule of Investments [Line Items]
Face Value	1,000,000	1,000,000
Maturity Date Range End	Jul. 24, 2013	Feb. 05, 2013
Percentage of Net Assets	5.12%	4.30%
Fair Value	997,442	999,542
Commercial Paper [Member] | Banco De Chile [Member]
Schedule of Investments [Line Items]
Face Value		1,000,000
Maturity Date Range End		Mar. 07, 2013
Percentage of Net Assets		4.30%
Fair Value		999,222
Commercial Paper [Member] | Korea Development Bank [Member]
Schedule of Investments [Line Items]
Face Value	1,000,000	1,000,000
Maturity Date Range End	Jul. 16, 2013	Jan. 17, 2013
Percentage of Net Assets	5.13%	4.30%
Fair Value	998,050	999,316
Commercial Paper [Member] | Shinhan Bank CP [Member]
Schedule of Investments [Line Items]
Face Value	750,000
Maturity Date Range End	Sep. 23, 2013
Percentage of Net Assets	3.84%
Fair Value	748,697
Commercial Paper [Member] | Kookmin Bank CP [Member]
Schedule of Investments [Line Items]
Face Value	684,000
Maturity Date Range End	Sep. 12, 2013
Percentage of Net Assets	3.51%
Fair Value	682,547
Commercial Paper [Member] | Export Import Bank Korea CP [Member]
Schedule of Investments [Line Items]
Face Value	800,000
Maturity Date Range End	Jul. 18, 2013
Percentage of Net Assets	4.10%
Fair Value	799,060
Commercial Paper [Member] | Nextra Energy Capital Holdings [Member]
Schedule of Investments [Line Items]
Face Value		1,000,000
Maturity Date Range End		Jan. 22, 2013
Percentage of Net Assets		4.30%
Fair Value		999,611
Commercial Paper [Member]
Schedule of Investments [Line Items]
Face Value	4,234,000	4,000,000
Percentage of Net Assets	21.70%	17.20%
Fair Value	4,225,796	3,997,691
US Government Agencies Debt Securities [Member] | Federal Home Loan Bank [Member]
Schedule of Investments [Line Items]
Face Value		2,000,000
Maturity Date Range Start		Jun. 04, 2014
Maturity Date Range End		Aug. 07, 2014
Percentage of Net Assets		8.61%
Fair Value		2,000,770
US Government Agencies Debt Securities [Member] | Federal Home Loan Bank #2 [Member]
Schedule of Investments [Line Items]
Face Value	1,500,000
Maturity Date Range Start	Jun. 17, 2016
Maturity Date Range End	Jun. 24, 2016
Percentage of Net Assets	7.67%
Fair Value	1,493,145
US Government Agencies Debt Securities [Member] | Freddie Mac Bond [Member]
Schedule of Investments [Line Items]
Face Value	2,000,000	2,000,000
Maturity Date Range Start	Nov. 26, 2014	Nov. 26, 2014
Maturity Date Range End	Dec. 05, 2014	Dec. 05, 2014
Percentage of Net Assets	10.27%	8.61%
Fair Value	2,000,720	2,000,870
US Government Agencies Debt Securities [Member] | Freddie Mac Note [Member]
Schedule of Investments [Line Items]
Face Value		1,500,000
Maturity Date Range End		Feb. 21, 2014
Percentage of Net Assets		6.45%
Fair Value		1,500,645
US Government Agencies Debt Securities [Member] | Freddie Mac Bond #2 [Member]
Schedule of Investments [Line Items]
Face Value	500,000
Maturity Date Range End	Aug. 21, 2015
Percentage of Net Assets	2.57%
Fair Value	501,170
US Government Agencies Debt Securities [Member] | Fannie Mae [Member]
Schedule of Investments [Line Items]
Face Value	1,250,000
Maturity Date Range Start	Feb. 26, 2016
Maturity Date Range End	Mar. 28, 2016
Percentage of Net Assets	6.39%
Fair Value	1,244,793
US Government Agencies Debt Securities [Member]
Schedule of Investments [Line Items]
Face Value	5,250,000	5,500,000
Percentage of Net Assets	26.90%	23.67%
Fair Value	5,239,828	5,502,285
Private Equity Funds, Domestic [Member]
Schedule of Investments [Line Items]
Percentage of Net Assets	0.01%	0.02%
Fair Value	2,633	3,600
Fixed Income Securities [Member]
Schedule of Investments [Line Items]
Fair Value	11,775,841	11,003,681
Fixed Income Securities [Member] | Maximum [Member]
Schedule of Investments [Line Items]
Percentage of Net Assets	40.00%
Global Diversified Managed Futures Portfolio, LLC [Member]
Schedule of Investments [Line Items]
Percentage of Net Assets	5.05%
Fair Value	$ 982,881