XML 28 R17.htm IDEA: XBRL DOCUMENT v3.10.0.1
5. Land Inventory (Tables)
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Land and improvement inventories
    September 30,     December 31,  
    2018     2017  
    ($ in thousands)  
Fully improved land   $ 14     $ 14