BENEFIT PLANS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Age of employees to be eligible to participate in the defined contribution plan	21 years
Eligible service period to participate in the defined contribution plan	1 year
Maximum employee contribution, Percentage	20.00%
Matching contribution by the company (as a percent)	50.00%
Maximum percentage of employee's salary	2.00%
Total matching contributions	$ 2	$ 37

Represents the age of employees to be eligible to participate in the defined contribution plan.

No definition available.

Name:	adk_DefinedContributionPlanEligibleAgeOfEmployeesCovered
Namespace Prefix:	adk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the service period served by the employee to be eligible to participate in the defined contribution plan.

+ References

No definition available.

+ Details

Name:	adk_DefinedContributionPlanEligiblePeriodOfService
Namespace Prefix:	adk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The employer matching percentage of a specified percentage of an employee's gross pay for which the employer contributes to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	adk_DefinedContributionPlanEmployerMatchPercentage
Namespace Prefix:	adk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration