Shareholders' Equity - Option Acceleration (Details) - Stock options - USD ($) $ in Thousands		12 Months Ended
Dec. 01, 2009	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Option Acceleration
Threshold percentage for determining deeply out-of-the-money options	30.00%
Number of previously unvested shares, which became fully vested as a result of option acceleration	309,000
Expense associated with the accelerated options		$ 0	$ 0	$ 137

Represents the threshold percentage of out-of-the-money options for determining them to be deeply out-of-the-money by the entity.

No definition available.

Name:	beat_ShareBasedCompensationArrangementByShareBasedPaymentAwardThresholdPercentageForDeterminingDeeplyOutOfMoneyOptions
Namespace Prefix:	beat_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration