Commitments and Contingencies - Additional Information (Detail) - USD ($) |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
---|---|---|---|---|---|---|
Feb. 28, 2010 |
Jul. 31, 2007 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
|
Loss Contingencies [Line Items] | ||||||
Minimum annual royalty payment | $ 250,000 | |||||
Minimum royalty obligations | $ 442,000 | 442,000 | ||||
Litigation and settlement obligation, Total | 500,000 | 500,000 | ||||
Royalty obligation non-current | 395,000 | 395,000 | ||||
Purchase obligations to suppliers for future product deliverables | 2,200,000 | 2,200,000 | ||||
CADx Medical Systems Inc. [Member] | ||||||
Loss Contingencies [Line Items] | ||||||
Tax re-assessment received | $ 6,800,000 | |||||
Reduced tax re-assessment received | $ 703,000 | |||||
Hologic [Member] | ||||||
Loss Contingencies [Line Items] | ||||||
Interest expense royalty obligation | 18,000 | $ 25,000 | 36,000 | $ 50,000 | ||
Zeiss [Member] | ||||||
Loss Contingencies [Line Items] | ||||||
Interest expense royalty obligation | $ 28,000 | $ 28,000 | $ 56,000 | $ 56,000 |