Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Consolidated Balance Sheets Parenthetical
Amortized cost	$ 26,190,228	$ 33,444,211
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	5,341,147	5,341,147
Common stock, shares outstanding	5,341,147	5,341,147