XML 58 R43.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note Receivable - Related Party (Detail) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Jun. 25, 2007
Notes Receivable, Related Parties, Noncurrent $ 2,289,000 $ 2,644,000   $ 3,000,000
Debt Instrument, Decrease, Forgiveness 0      
Increase (Decrease) in Notes Receivable, Related Parties $ 55 $ 63 $ 71