Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Taxes

Schedule of reconciliation of income tax provision

The income tax benefit differs from the amounts determined by applying the statutory federal income tax rate of 21% for 2018 and 34% for 2017 to the loss before income tax benefit for the following reasons (dollars in thousands):

	Three Months Ended
	March 31,
	2018		2017
Income tax benefit at federal rate	$	(1,523)	$	(1,135)
Increase (decrease) resulting from:
State income taxes, net of federal income tax		(363)		(123)
Tax credit included in taxable income		31		93
Other permanent differences		—		52
Capital goods excise tax credit		(119)		(273)
Change in valuation allowance		460		—
Total income tax benefit	$	(1,514)	$	(1,386)