CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (Parentheticals) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]
Taxes on unrealized appreciation (depreciation) on available-for-sale securities	$ 582,945	$ (1,713,570)	$ 1,046,929	$ (1,957,571)
Taxes on reclassification adjustment for realized gains included in net income	$ 20,987	$ 35,587	$ 54,938	$ 234,226