XML 66 R53.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note 11 - Capital Stock - Summary of Warrant Activity (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Outstanding (in shares) | 105,556 |
Outstanding, weighted average exercise price (in dollars per share) | $ 9.95 |
Outstanding, weighted average remaining contractual life (Year) | 6 years 273 days | 7 years 182 days
Outstanding, aggregate intrinsic value of vested warrants | $ 2,105,842 | $ 2,368,677
Issued (in shares) |  |
Issued, weighted average exercise price (in dollars per share) |  |
Exercised (in shares) |  |
Exercised, weighted average exercise price (in dollars per share) |  |
Expired (in shares) |  |
Outstanding (in shares) | 105,556 | 105,556
Outstanding, weighted average exercise price (in dollars per share) | $ 9.95 | $ 9.95

X
- Definition The number of warrants or rights exercised during period. + References No definition available. + Details
Name: | bomn_ClassOfWarrantOrRightExercisedDuringPeriod
Namespace Prefix: | bomn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share of warrants or rights exercised during period. + References No definition available. + Details
Name: | bomn_ClassOfWarrantOrRightExercisedDuringPeriodExercisePrice
Namespace Prefix: | bomn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of warrants or rights expired during period. + References No definition available. + Details
Name: | bomn_ClassOfWarrantOrRightExpiredDuringPeriod
Namespace Prefix: | bomn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of warrants or rights issued during period. + References No definition available. + Details
Name: | bomn_ClassOfWarrantOrRightIssuedDuringPeriod
Namespace Prefix: | bomn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share of warrants or rights issued during period. + References No definition available. + Details
Name: | bomn_ClassOfWarrantOrRightIssuedDuringPeriodExercisePrice
Namespace Prefix: | bomn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The remaining term of certain warrants or rights. + References No definition available. + Details
Name: | bomn_ClassOfWarrantOrRightTerm
Namespace Prefix: | bomn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant