 | boi_BC:x0 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x1 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x10 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x11 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x12 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x13 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x14 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x15 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x16 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x17 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x18 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x19 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x2 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x20 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x21 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x22 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x23 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x24 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x25 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x26 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x27 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x28 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x29 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x3 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x30 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x31 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x32 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x33 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x34 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x4 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x5 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x6 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x7 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x8 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x9 | domain-member | http://www.xbrl.org/2003/role/link |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/1 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/4 |
 | boi_BC:x2 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/7 |
 | boi_BC:x2 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/10 |
 | boi_BC:x2 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/13 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/16 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/19 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/22 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/25 |
 | boi_BC:x2 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/28 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/31 |
 | boi_BC:x2 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/34 |
 | boi_BC:x1 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/37 |
 | boi_BC:x2 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1a/40 |
 | boi_BC:x11 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/1 |
 | boi_BC:x11 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/4 |
 | boi_BC:x12 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/7 |
 | boi_BC:x12 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/10 |
 | boi_BC:x12 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/13 |
 | boi_BC:x11 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/16 |
 | boi_BC:x11 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/19 |
 | boi_BC:x11 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/22 |
 | boi_BC:x11 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/25 |
 | boi_BC:x12 | domain-member | http://www.boi.org.il/xbrl/role/fws/d822/d822/2018-03-31/tab/822-1b/28 |