MBS And Other Investments: Unrealized Gain (Loss) on Investments (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013 security	Sep. 30, 2012 security
Held-to-maturity Securities, Fair Value:
Less Than 12 Months	$ 80	$ 24
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	341	523
Total	421	547
Held-to-maturity Securities, Gross Unrealized Losses
Less Than 12 Months	(5)	(1)
12 Months or Longer	(11)	(62)
Total	(16)	(63)
Held-to-maturity, Qty, Less Than 12 Months	7	2
Held-to-maturity, Qty, 12 Months or Longer	19	32
Available-for-sale Securities, Fair Value:
Less Than 12 Months	1,010	0
Available-for-sale Securities, 12 Months or Longer, Estimated Fair Value	125	651
Total	1,135	651
Available-for-sale Securities, Gross Unrealized Losses:
Less Than 12 Months	(39)	0
12 Months or Longer	(6)	(109)
Total	(45)	(109)
Available-for-sale, Qty, Less than 12 Months	2
Available-for-sale, Qty, 12 Months or Longer	2	4
Mortgage-backed Securities, U.S. government agencies
Held-to-maturity Securities, Fair Value:
Less Than 12 Months	1	7
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	91	100
Total	92	107
Held-to-maturity Securities, Gross Unrealized Losses
Less Than 12 Months	0	0
12 Months or Longer	(2)	(3)
Total	(2)	(3)
Held-to-maturity, Qty, Less Than 12 Months	4	1
Held-to-maturity, Qty, 12 Months or Longer	4	4
Available-for-sale Securities, Fair Value:
Less Than 12 Months	49
Available-for-sale Securities, Gross Unrealized Losses:
Less Than 12 Months	0
Available-for-sale, Qty, Less than 12 Months	1
Mortgage-backed Securities, Private label residential
Held-to-maturity Securities, Fair Value:
Less Than 12 Months	79	17
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	250	423
Total	329	440
Held-to-maturity Securities, Gross Unrealized Losses
Less Than 12 Months	(5)	(1)
12 Months or Longer	(9)	(59)
Total	(14)	(60)
Held-to-maturity, Qty, Less Than 12 Months	3	1
Held-to-maturity, Qty, 12 Months or Longer	15	28
Available-for-sale Securities, Fair Value:
Less Than 12 Months	0	0
Available-for-sale Securities, 12 Months or Longer, Estimated Fair Value	125	651
Total	125	651
Available-for-sale Securities, Gross Unrealized Losses:
Less Than 12 Months	0	0
12 Months or Longer	(6)	(109)
Total	(6)	(109)
Available-for-sale, Qty, 12 Months or Longer	2	4
Mutual funds
Available-for-sale Securities, Fair Value:
Less Than 12 Months	961
Available-for-sale Securities, 12 Months or Longer, Estimated Fair Value	0
Total	961
Available-for-sale Securities, Gross Unrealized Losses:
Less Than 12 Months	(39)
12 Months or Longer	0
Total	$ (39)
Available-for-sale, Qty, Less than 12 Months	1