XML 63 R50.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 8 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Federal income tax expense (credit) at statutory rate $ (945) $ 3,815
Adjusted for:    
AMT refundable credits (4,999)
Valuation allowance 986 (3,814)
Permanent differences and other (41) (1)
Income tax benefit $ (4,999)