Represents the additional rentable square feet the entity is obligated to lease under lease agreement.

No definition available.

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Namespace Prefix:	depo_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of rent expense incurred for leased vehicles.

+ References

No definition available.

+ Details

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Namespace Prefix:	depo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the minimum period prior to the lease expiration that written notice must be made to the landlord, if the entity wishes to extend the lease.

+ References

No definition available.

+ Details

Name:	depo_LeaseRenewalAdvanceNoticeRequiredMinimumPeriod
Namespace Prefix:	depo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the lease renewal option period.

+ References

No definition available.

+ Details

Name:	depo_LeaseRenewalOptionPeriod
Namespace Prefix:	depo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the rate applied to unamortized remaining lease incentives which may include tenant improvement allowances, waived base rent and leasing commissions and other allowances specified in the lease agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	depo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of additional lease renewal terms the entity is entitled to under the lease agreement.

+ References

No definition available.

+ Details

Name:	depo_NumberOfLeaseRenewalTerms
Namespace Prefix:	depo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of required minimum rental payments maturing after the fourth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

No definition available.

+ Details

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Namespace Prefix:	depo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the unamortized contributions from landlords for leasehold improvements during the period.

+ References

No definition available.

+ Details

Name:	depo_UnamortizedContributionFromLandlords
Namespace Prefix:	depo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_OperatingLeasedAssetsLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Period Type:	duration

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

Name:	us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Net cash outflow or inflow from monetary allowance granted by the landlord to a tenant to entice tenant to move into landlords building which will enable the tenant to prepare the leased premises for tenants occupancy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_CounterpartyNameAxis=depo_EnterpriseFmTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=depo_NewarkMember
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Period Type:

COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended			1 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012 item sqft
Leases
Future aggregate amount payable as rent over the remaining term of the lease	$ 16,413,000
Rent expense	700,000us-gaap_LeaseAndRentalExpense	1,000,000us-gaap_LeaseAndRentalExpense	2,300,000us-gaap_LeaseAndRentalExpense
Rent expense of cars	1,100,000depo_LeaseAndRentalExpenseForVehicles
Future minimum payments under operating leases for facilities
2015	3,164,000
2016	3,209,000
2017	2,069,000
2018	1,530,000
Thereafter	6,441,000
Total	16,413,000
Unamortized contribution from Landlords towards leasehold improvements	5,100,000	5,800,000
Cash contributions received from landlord		5,000,000	1,300,000
Enterprise FM Trust
Leases
Future aggregate amount payable as rent over the remaining term of the lease		4,300,000		4,300,000
Future minimum payments under operating leases for facilities
Total		4,300,000		4,300,000
Enterprise FM Trust \| Minimum
Leases
Lessee Leasing Arrangements, Operating Leases, Term of Contract				18 months
Enterprise FM Trust \| Maximum
Leases
Lessee Leasing Arrangements, Operating Leases, Term of Contract				36 months
New lease Newark
Leases
Square feet agreed to lease					52,500
Additional square feet obligated to lease					8,000
Number of lease renewal terms					1
Lease renewal option period					5 years
Lease renewal, minimum notice period prior to lease expiration					12 months
Lease termination penalty interest (as a percent)					8.00%
Future aggregate amount payable as rent over the remaining term of the lease	12,100,000
Deferred rent	1,700,000	1,500,000		1,500,000
Future minimum payments under operating leases for facilities
Total	$ 12,100,000