Fair Value of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

The following table summarizes quantitative information about the significant unobservable inputs used in the fair value measurement of the Company’s Level 3 financial instruments:

	Valuation Technique	Unobservable Input	Range			Weighted Average
Financial instruments and    other inventory positions    owned:
Corporate equities	Put option discount using Black-Scholes option pricing model	Stock volatility		150	%		150	%
Stock warrants	Black-Scholes option pricing model	Stock volatility		71 - 313	%		172	%
Underwriters' purchase    options	Black-Scholes option pricing model	Stock volatility		200	%		200	%
Preferred stock	Exchange-quoted price of common stock equivalents	Preferred stock to common stock conversion rate		1.6			1.6

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

Assets and liabilities measured at fair value on a recurring basis are summarized below:

	Assets at Fair Value at June 30, 2013
	Level 1		Level 2		Level 3		Total
Assets:
Corporate equities	$	1,112,129	$	-	$	284,552	$	1,396,681
Stock warrants		-		-		366,149		366,149
Underwriters' purchase option		-		-		28,190		28,190
Preferred stock		-		-		156		156
Total securities owned	$	1,112,129	$	-	$	679,047	$	1,791,176
Liabilities:
Securities sold, not yet purchased	$	6,483	$	-	$	-	$	6,483
Total fair value liabilities	$	6,483	$	-	$	-	$	6,483

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following summarizes the change in carrying values associated with Level 3 financial instruments for the three months ended June 30, 2013:

					Underwriters'
	Corporate		Stock		Purchase
	Equities		Warrants		Options		Preferred Stock		Total
Balance at December 31, 2012	$	241,767	$	468,848	$	17,634	$	63	$	728,312
Purchases or receipt (a)		-		84,742		-		-		84,742
Sales or exercises		-		(217,677)		-		-		(217,677)
Transfers out of		-		-		-		-		-
Gains (losses):
Realized		-		-		-		-		-
Unrealized		42,785		30,236		10,556		93		83,670
Balance at June 30, 2013	$	284,552	$	366,149	$	28,190	$	156	$	679,047
Change in unrealized gains (losses) relating to instruments still held at June 30, 2013	$	(16,314)	$	(150,321)	$	10,556	$	93	$	(155,986)

(a) Includes purchases of securities and securities received for services