8. Income Taxes (Tables)

3 Months Ended

Mar. 31, 2017

Income Tax Disclosure [Abstract]

Summary of the temporary differences

	March 31,			December 31,
	2017			2016
	($ in thousands)
Deferred tax asset
Net operating loss carryforward	$	25,411		$	25,240
Expenses capitalized under IRC 263(a)		56			56
Environmental liability		7			7
Valuation allowance		(25,474	)		(25,303	)
Total deferred tax asset		—			—