The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options and non plan.

No definition available.

Name:	obci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberIncludingNonPlan
Namespace Prefix:	obci_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Stock options and awards (Details 1)	Dec. 31, 2013	Dec. 31, 2012
Non Plan [Member]
Summary of options outstanding and granted under stock option plans
Options Outstanding	115,000	115,000
2002 NQ [Member]
Summary of options outstanding and granted under stock option plans
Options Outstanding	110,000
2008 NQ [Member]
Summary of options outstanding and granted under stock option plans
Options Outstanding	60,000