Note 9 - Equity-Based Compensation (Details) - Weighted Average Assumptions	3 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Restricted Stock Units (RSUs) [Member]
Note 9 - Equity-Based Compensation (Details) - Weighted Average Assumptions [Line Items]
Pre-vest cancellation rate	4.40%	4.57%

Weighted average pre-vest cancellation rate of share-based compenstation awards.

No definition available.

Name:	dspg_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsWeightedAveragePrevestCancellationRate
Namespace Prefix:	dspg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration