Income Taxes (Tables)

12 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Schedule of Income Taxes from Continuing Operations

Income taxes from continuing operations in the accompanying consolidated statements of income for the fiscal years ended September 30 are as follows (in thousands):

	2015		2014			2013
Current provision:
Federal	$	6,065	$	6,470		$	6,048
State and foreign		136		147			225
Total current provision		6,201		6,617			6,273
Deferred provision (benefit):
Federal		58		(347	)		(552	)
State		35		(5	)		60
Total deferred provision (benefit)		93		(352	)		(492	)
Total provision	$	6,294	$	6,265		$	5,781

Schedule of Reconciliation Difference of Income Taxes

The reconciliation of the difference between amounts calculated at the statutory U.S. federal tax rate of 35% for the fiscal years ended September 30 and the Company’s effective tax rate from continuing operations  is as follows (in thousands):

	2015			2014			2013
Amount at statutory U.S. federal income tax rate	$	6,385		$	6,465		$	7,126
Change because of the following items:
State income taxes, net of federal benefit		67			118			278
Stock-based compensation		16			21			25
Valuation allowance change		348			120			(699	)
Tax reserve change		34			(121	)		(128	)
Federal manufacturing deduction		(268	)		(235	)		(266	)
Federal research and development credit		(74	)		(67	)		(324	)
Other		(214	)		(36	)		(231	)
Income tax provision	$	6,294		$	6,265		$	5,781

Schedule of Deferred Income Taxes

The components of deferred income taxes consisted of the following as of September 30 and result from differences in the recognition of transactions for income tax and financial reporting purposes (in thousands):

	2015			2014
Depreciable assets	$	1,618		$	1,612
Deferred revenue		96			101
Accruals and reserves		145			324
Stock-based compensation		4,194			4,373
Impaired strategic investments		4,186			3,674
Unrealized gains on investments		—			(550	)
Capital loss carryforward		1,456			1,650
Other		1,276			764
Valuation allowance		(5,721	)		(4,836	)
Total deferred tax assets		7,250			7,112
Less current deferred tax assets		(546	)		(394	)
Noncurrent deferred tax assets	$	6,704		$	6,718

Summary of Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding interest and penalties, is as follows (in thousands):

	2015			2014			2013
Beginning of fiscal year	$	1,216		$	1,300		$	1,435
Increases in tax positions for prior years		50			43			27
Decreases in tax positions for prior years		(10	)		(1	)		(278	)
Increases in tax positions for current year		146			149			122
Lapse of the statute of limitations		(154	)		(275	)		(6	)
End of fiscal year	$	1,248		$	1,216		$	1,300