Investments (Tables)

6 Months Ended

Mar. 31, 2014

Investments Debt And Equity Securities [Abstract]

Amortized Cost, Unrealized Holding Gains (Losses) and Fair Value of Available-for-Sale Securities

The amortized cost, unrealized holding gains and losses, and fair value of available-for-sale securities as of March 31, 2014 and September 30, 2013 were as follows:

	March 31, 2014
(Dollars in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
U.S. government and government agency obligations	$	25,084	$	10	$	(28	)	$	25,066
Mortgage-backed securities		5,226		43		(46	)		5,223
Municipal bonds		1,827		10		(3	)		1,834
Asset-backed securities		6,375		13		(8	)		6,380
Corporate bonds		4,321		6		(11	)		4,316
Total	$	42,833	$	82	$	(96	)	$	42,819

	September 30, 2013
(Dollars in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
U.S. government and government agency obligations	$	22,889	$	28	$	(27	)	$	22,890
Mortgage-backed securities		8,149		118		(51	)		8,216
Municipal bonds		3,049		15		(5	)		3,059
Asset-backed securities		3,539		6		(8	)		3,537
Corporate bonds		4,896		17		(6	)		4,907
Total	$	42,522	$	184	$	(97	)	$	42,609

Amortized Cost and Fair Value of Investments by Contractual Maturity

The amortized cost and fair value of investments by contractual maturity at March 31, 2014 were as follows:

(Dollars in thousands)	Amortized Cost		Fair Value
Debt securities due within:
One year	$	25,394	$	25,399
One to five years		11,207		11,194
Five years or more		6,232		6,226
Total	$	42,833	$	42,819

Sales of Available-for-Sale Securities

The following table summarizes sales of available-for-sale securities:

	Three months ended March 31,				Six months ended March 31,
(Dollars in thousands)	2014		2013		2014			2013
Proceeds from sales	$	89,647	$	25,175	$	92,514		$	25,980
Gross realized gains	$	125	$	161	$	126		$	165
Gross realized losses	$	—	$	—	$	(1	)	$	—