INVESTMENTS - Amortized Cost and Approximate Fair Value of Available-for-Sale Securities (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	$ 111,981,792	$ 110,999,045
Available-for-sale securities, gross unrealized gains	1,622,373	4,647,015
Available-for-sale securities, gross unrealized losses	(3,680,056)	(258,237)
Available-for-sale securities, fair value	109,924,109	115,904,297
U.S. Government and agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	11,303,602	10,090,835
Available-for-sale securities, gross unrealized gains	132,720	248,601
Available-for-sale securities, gross unrealized losses	(284,471)	(10,556)
Available-for-sale securities, fair value	11,151,851	10,328,880
Mortgage-backed securities (government-sponsored enterprises - residential)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	50,357,410	50,917,555
Available-for-sale securities, gross unrealized gains	342,900	1,134,245
Available-for-sale securities, gross unrealized losses	(1,364,806)	(95,319)
Available-for-sale securities, fair value	49,335,504	51,956,481
Municipal bonds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	50,320,780	49,990,655
Available-for-sale securities, gross unrealized gains	1,146,753	3,264,169
Available-for-sale securities, gross unrealized losses	(2,030,779)	(152,362)
Available-for-sale securities, fair value	$ 49,436,754	$ 53,102,462