Income Taxes - (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) from Continuing Operations Before Income Taxes

Income (loss) from continuing operations before income taxes include the following components (in thousands):

	Years Ended December 31,
	2017			2016
U.S.-based operations	$	(5,715	)	$	(17,344	)
Non U.S.-based operations	517			(7,088		)
	$	(5,198	)	$	(24,432	)

Schedule of Income Tax Expense (Benefit)

Income tax expense (benefit) attributable to loss from continuing operations is summarized as follows (in thousands):

	Current			Deferred			Total
Year ended December 31, 2017:
State and local	$	53		$	—		$	53
Foreign	128			(96		)	32
Total	$	181		$	(96	)	$	85
Year ended December 31, 2016:
U.S. Federal	$	—		$	—		$	—
State and local	22			—			22
Foreign	(210		)	(770		)	(980		)
Total	$	(188	)	$	(770	)	$	(958	)

Reconciliation of Expected Income Tax Expense to Actual Income Tax Expense

Income taxes attributable to loss from continuing operations differ from the amounts computed by applying the U.S. federal statutory rate of 34% to loss from continuing operations before income taxes as shown below (in thousands):

	Years Ended December 31,
	2017			2016
Expected tax benefit	$	(1,766	)	$	(8,307	)
Net tax effects of:
Foreign tax rate differential	(77		)	1,331
State taxes, net of federal benefit	(362		)	219
Return to provision adjustment	(48		)	13,386
Research and other credits	2,719			443
Permanent difference on convertible notes and warrants	(169		)	2,923
Goodwill impairment	—			533
Other	86			61
Change in deferred tax asset valuation allowance	(298		)	(11,547		)
	$	85		$	(958	)

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities consist of the following (in thousands):

	December 31,
	2017			2016
Deferred tax assets:
Research and development credits	$	2,486		$	2,063
Operating loss carry forwards	7,085			7,320
Interest	315			460
Inventories	240			289
Allowance for doubtful accounts	88			129
Depreciation	316			353
Non-cash compensation	739			946
Other	533			929
Total gross deferred tax assets	11,802			12,489
Valuation allowance	(10,874		)	(11,441		)
Net deferred tax assets	$	928		$	1,048
Deferred tax liabilities:
Other identifiable intangible assets	$	(284	)	$	(494	)
Total gross deferred tax liabilities	(284		)	(494		)
Net deferred tax assets	$	644		$	554

Schedule of Changes in Unrecognized Tax Benefits Including Related Interest and Penalties

The following changes occurred in the amount of unrecognized tax benefits including related interest and penalties, included in the income taxes payable on the consolidated balance sheet (in thousands):

	Years Ended December 31,
	2017		2016
Balance at beginning of year	$	1,469	$	634
Additions for current year tax provisions	51		49
Additions/Reduction for tax positions of prior years	—		786
Reduction for prior year tax provisions	—		—
Balance at end of year	$	1,520	$	1,469

Schedule of Tax Years Open to Examination

The following tax years remain open to examination by the major domestic taxing jurisdictions to which it is subject:

	Open Tax Years
United States—Federal	2014 - 2017
United States—State	2013 - 2017
Canada	2012 - 2017
Sweden	2015 - 2017
United Kingdom	2013 - 2017