(14) Income Taxes

The provision for income taxes consists of the following (in thousands):


	Fiscal Years Ended June 30,						Six Months Ended December 31,
	2009		2010		2011		2010		2011
							(Unaudited)
Current provision:
Federal	$	—	$	—	$	62	$	111	$	325
State		5		2		988		449		396
Foreign		43		278		286		93		329

		48		280		1,336		653		1,050

Deferred provision:
Federal		—		—		—		—		22
State		—		—		—		—		3
Foreign		—		—		—		—		—

		—		—		—		—		25

Provision for income taxes	$	48	$	280	$	1,336	$	653	$	1,075

The components of income (loss) from continuing operations before income taxes by United States and foreign jurisdictions were as follows (in thousands):


	Fiscal Years Ended June 30,								Six Months Ended December 31,
	2009			2010			2011		2010		2011
									(Unaudited)
United States	$	(5,864	)	$	(29,602	)	$	10,585	$	5,368	$	(1,375	)
Foreign		6			177			581		88		(4,234	)

Total	$	(5,858	)	$	(29,425	)	$	11,166	$	5,456	$	(5,609	)

The effective income tax rate differs from the federal statutory income tax rate applied to the income (loss) before provision for income taxes due to the following (in thousands):


	Fiscal Years Ended June 30,									Six Months Ended December 31,
	2009			2010			2011			2010			2011
										(Unaudited)
Tax computed at the federal statutory rate	$	(1,991	)	$	(10,005	)	$	3,799		$	1,857		$	(1,907	)
State taxes, net of federal benefit		(312	)		(359	)		250			122			82
Tax rate differential for international subsidiaries⁽¹⁾		(1	)		(13	)		(47	)		(23	)		1,589
Stock-based compensation		50			149			727			244			978
Tax credits		(677	)		(282	)		(409	)		(150	)		(378	)
Tax contingencies		194			265			171			74			178
Permanent differences		226			411			305			120			244
Change in state rate		32			(1,170	)		662			295			8
Other		(15	)		117			344			379			146
Valuation allowance		2,542			11,167			(4,466	)		(2,265	)		135

Provision for income taxes	$	48		$	280		$	1,336		$	653		$	1,075

(1)

The change in the impact of the tax rate differential for international jurisdictions is primarily attributable to a change in the mix of income/loss from the United States to international jurisdictions with different income tax rates compared to the United States.

Significant components of our deferred tax assets as of June 30, 2010 and 2011 and December 31, 2011 are shown below (in thousands). A valuation allowance has been recognized to offset our deferred tax assets as realization for fiscal 2010 and 2011 and the six months ended December 31, 2011 of such deferred tax assets has not met the more likely than not threshold.


	June 30,						December 31, 2011
	2010			2011			December 31, 2011
Deferred tax assets:
Net operating losses	$	15,731		$	9,936		$	4,182
Deferred revenue		848			2,397			8,434
Accrued state taxes		—			286			28
Accrued expenses		416			363			672
Deferred rent		128			183			201
Credit carryforwards		781			858			1,357
Incentive from lessor		—			1,096			1,023
Stock-based compensation		—			345			1,333
Other		409			461			1,130

Total deferred tax assets		18,313			15,925			18,360
Less valuation allowance		(18,160	)		(13,694	)		(13,829	)

		153			2,231			4,531
Deferred tax liabilities:
Accrued expenses		—			—			—
Property and equipment		(153	)		(2,231	)		(4,531	)

Net deferred tax assets	$	—		$	—		$	—

As of December 31, 2011, we had U.S. federal net operating losses and federal tax credit carryforwards of approximately $13.1 million and $0.9 million, respectively. The federal net operating loss carryforwards and federal tax credits will begin to expire in 2024 if not utilized. In addition, we had state net operating losses and state tax credit carryforwards of approximately $39.4 million and $0.9 million, respectively. The state net operating loss and tax credit carryforwards will begin to expire in 2018 if not utilized.

Approximately $6.8 million of federal net operating losses and $4.2 million of state net operating losses relate to stock-based compensation deductions in excess of book expense, the tax effect of which would be to credit additional paid-in capital, if realized.

We had research credit carryforwards of approximately $0.9 million for federal purposes and another $0.9 million for state purposes. If not utilized, the federal carryforward will begin to expire in 2024.

Due to cumulative losses, we maintain a valuation allowance against our deferred tax assets as of December 31, 2011. We consider all available evidence, both positive and negative, in assessing the extent to which a valuation allowance should be applied against deferred tax assets. Our valuation allowance increased $11.2 million for fiscal 2010 as compared to fiscal 2009, decreased $4.5 million for fiscal 2011 as compared to fiscal 2010, and increased $0.1 million during the six months ended December 31, 2011.

Section 382 imposes annual limitations on the utilization of NOL carryforwards and other tax attributes upon an ownership change. In general terms, an ownership change may result from transactions that increase the aggregate ownership of certain stockholders in our stock by more than 50 percentage points over a testing period (generally three years). We completed a Section 382 analysis. Based on this analysis, we do not believe that our NOLs and other tax attributes are limited under Section 382 as of December 31, 2011.

We have not recorded a provision for deferred U.S. tax expense that could result from the remittance of foreign undistributed earnings since we intend to reinvest the earnings of these foreign subsidiaries indefinitely.

Our share of the undistributed earnings of foreign corporations not included in our consolidated federal income tax returns that could be subject to additional U.S. income tax if remitted was approximately $0.2 million, $0.8 million and $0.8 million at June 30, 2010 and 2011 and December 31, 2011, respectively. The determination of the amount of unrecognized U.S federal deferred income tax liability for undistributed earnings is not practicable.

We record liabilities, where appropriate, for all uncertain income tax positions. We recognize potential accrued interest and penalties related to unrecognized tax benefits as income tax expense.

A reconciliation of the beginning and ending balance of total unrecognized tax benefits is as follows (in thousands):


	Fiscal Years Ended June 30,						Six Months Ended December 31,
	2009		2010		2011		2010		2011
							(Unaudited)
Beginning balance	$	98	$	185	$	374	$	374	$	519
Tax provisions taken in the period:
Additions		87		189		145		73		191
Reductions		—		—		—		—		—

Ending balance	$	185	$	374	$	519	$	447	$	710

As of July 1, 2011, we had total unrecognized tax benefit of approximately $0.5 million. During the six months ended December 31, 2011, we recognized approximately $0.2 million of interest and penalties associated with unrecognized tax benefits. We do not believe there will be a material change in our unrecognized tax positions over the next twelve months.

We file income tax returns with the U.S. federal, various states and certain foreign jurisdictions. Our tax years ending June 30, 2005 through December 31, 2011 remain open in most jurisdictions.