Income Taxes, Net Deferred Tax Asset (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Net Deferred Tax Asset Arising Primarily from NOL Carryforwards and AMT Credit Carryforwards [Abstract]
Deferred tax asset	$ 44,501,000	$ 47,800,000
Valuation allowance	(33,760,000)	(27,708,000)
Net deferred tax asset recognized	$ 10,741,000	$ 20,092,000