XML 92 R78.htm IDEA: XBRL DOCUMENT v3.20.4
Note 20 - Quarterly Results of Operations (Unaudited) - Quarterly Financial Information (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating revenues $ 142,750 $ 121,942 $ 92,979 $ 129,155 $ 123,497 $ 128,994 $ 133,000 $ 128,686 $ 486,825 $ 514,177 $ 533,261
Operating expenses and costs 126,380 111,868 94,986 119,669 141,381 121,461 119,789 118,999 452,902 501,630 491,659
Operating income (loss) 16,370 10,074 (2,007) 9,486 (17,884) 7,533 13,211 9,687 33,923 12,547 41,602
Non-operating (loss) income 4,510 (94) 2,961 (9,076) 2,457 490 (197) 3,472 (1,699) 6,222 (4,016)
Interest expense (2,214) (2,211) (2,179) (2,212) (2,377) (2,178) (2,059) (2,040) (8,815) (8,654) (6,245)
Income tax benefit (expense) (4,713) (1,769) 402 498 4,168 (1,264) (2,301) (2,818) (5,582) (2,215) (7,347)
Net income $ 13,953 $ 6,000 $ (823) $ (1,304) $ (13,636) $ 4,581 $ 8,654 $ 8,301 $ 17,827 $ 7,900 $ 23,994
Basic (in dollars per share) $ 2.43 $ 1.04 $ (0.14) $ (0.23) $ (2.37) $ 0.80 $ 1.47 $ 1.40 $ 3.10 $ 1.35 $ 3.94
Diluted (in dollars per share) $ 2.43 $ 1.04 $ (0.14) $ (0.23) $ (2.37) $ 0.79 $ 1.45 $ 1.39 $ 3.09 $ 1.34 $ 3.90
Basic (in shares) 5,734 5,763 5,766 5,746 5,751 5,756 5,901 5,921 5,752 5,832 6,083
Diluted (in shares) 5,752 5,768 5,766 5,746 5,751 5,799 5,949 5,985 5,768 5,880 6,159