Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Taxes

Schedule of the components of the entity's deferred tax assets and liabilities

	December 31,
	2015			2014
Deferred tax assets:
Net operating loss carryforwards	$	36,149		$	38,540
Research & development and AMT credit carryforwards		5,115			5,314
Stock option grants		7,483			7,410
Allowance for doubtful accounts		4,473			4,532
Deferred revenue		964			947
Other, net		1,576			571
Total deferred tax assets		55,760			57,314
Less valuation allowance		(49,759	)		(52,998	)
Net deferred tax assets		6,001			4,316
Deferred tax liabilities:
Property, plant and equipment		(3,027	)		(360	)
Identified intangible assets		(2,798	)		(3,756	)
Indefinite-lived intangible assets		(1,233	)		(987	)
Prepaid insurance		(176	)		(200	)
Total deferred tax liabilities		(7,234	)		(5,303	)
Net deferred tax liability	$	(1,233	)	$	(987	)

Schedule of reconciliations between expected income taxes computed at the federal rate and the provision (benefit) for income taxes

	Years ended December 31,
	2015			2014			2013
Income tax provision (benefit) at statutory rate	$	2,763		$	(4,237	)	$	(2,486	)
State income tax, net of federal benefit		(239	)		4			716
Stock-based compensation		133			43			203
Research and development		634			(626	)		(488	)
Other		416			368			670
(Decrease) increase in valuation allowance		(3,239	)		2,135			1,600
Provision for (benefit from) income taxes	$	468		$	(2,313	)	$	215

Schedule of the components of the entity's provision for (benefit from) income taxes

	Year Ended December 31,
	2015		2014
Current:
Federal	$	173	$	—
State		50		186
Total provision for income taxes		223		186
Deferred:
Federal		220		(2,355	)
State		25		(144	)
Total deferred provision for (benefit from) income taxes		245		(2,499	)
Total provision for (benefit from) income taxes	$	468	$	(2,313	)