9. Securities: Schedule of held-to-maturity investment and mortgage-backed securities, Contractual Maturities (Details) (Collateralized Mortgage Backed Securities, USD $)	Sep. 30, 2012
Collateralized Mortgage Backed Securities
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount	$ 3,000,000
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value	3,111,550
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	395,831
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value	408,538
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	7,021,946
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	7,034,476
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	8,407,173
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	8,754,899
Held to maturity mortgage-backed secrities, Amortized Cost	50,208,062
Held to maturity mortgage-backed secrities, Fair Value	53,034,458
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount	69,033,012
Held-to-maturity Securities, Debt Maturities, Fair Value	$ 72,343,921