Annual report pursuant to Section 13 and 15(d)

Note 5 - Construction Reserve Funds - Construction Reserve Funds (Details)

v3.19.1
Note 5 - Construction Reserve Funds - Construction Reserve Funds (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Withdrawals $ (17,300) $ (39,163) $ (87,820)
Deposits 6,315 27,414
$ (17,300) $ (32,848) $ (60,406)