Annual report pursuant to Section 13 and 15(d)

Income Taxes (Provision for Income Taxes) (Details)

v3.8.0.1
Income Taxes (Provision for Income Taxes) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]                      
Income (loss) before income taxes $ (146) $ 4,657 $ 1,187 $ (4,518) $ 2,586 $ (6,911) $ (1,576) $ (6,385) $ 1,180 $ (12,286) $ (11,695)
Expense (benefit) under statutory U.S. tax rates                 413 (4,300) (4,093)
Increase (decrease) in taxes resulting from:                      
(Decrease) increase in valuation allowance                 (11,261) 12,540 79
Nondeductible items                 4,475 1,323 1,701
State taxes, net of federal benefit                 431 671 1,600
Impact of tax reform                 (660) 0 0
Other, net                 100 (209) 231
Income tax expense (benefit)                 $ (6,502) $ 10,025 $ (482)