Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The components of the income tax provision are summarized as follows (in thousands):

	Year Ended December 31,
	2018		2017
Current:
Federal	$	-	$	(1,801	)
State and foreign		6		2
Total current		6		(1,799	)
Deferred:
Federal and state		-		3,362
Income tax provision	$	6	$	1,563

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The following table represents the reconciliation between the reported income taxes and the income taxes that would be computed by applying the federal statutory rate (21% for year ended December 31, 2018 and 35% for year ended December 31, 2017) to income before taxes (in thousands):

	Year Ended December 31,
	2018			2017
Income tax provision at federal statutory rate	$	1,229		$	2,453
Add (deduct) effect of:
State income taxes, net of federal tax		505			970
Refundable AMT credit		-			(1,801	)
Effect of tax rate change as a result of 2017 Tax Cuts and Jobs Act		-			16,869
Expiration of federal research and development credits		356			-
Expiration of capital loss carryforwards		248			-
Change in valuation allowance		(2,332	)		(14,549	)
Recognition of windfall NOLs		-			(2,379	)
Income tax provision	$	6		$	1,563

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

As of December 31, 2018 and 2017, the cumulative tax effects of temporary differences that give rise to the deferred tax assets are as follows (in thousands):

	December 31,			December 31,
	2018			2017
Deferred tax assets:
Federal and state net operating loss carryforward	$	22,755		$	24,399
Research and development credits carryforward		16,252			16,608
Capital loss carryforwards		-			332
Total gross deferred tax assets		39,007			41,339
Less valuation allowance		(39,007	)		(41,339	)
Net deferred tax assets	$	-		$	-