EMPLOYEE RETIREMENT PLAN (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Defined Contribution Plan [Line Items]
IRS limit	$ 17,500
Percentage of employer matching contribution	25.00%
Employer matching contribution, percent of employees' gross pay	6.00%
Expense under plan	$ 6,600	$ 49,000
Minimum [Member]
Defined Contribution Plan [Line Items]
Percent of weekly contribution incentive	7.00%
Maximum [Member]
Defined Contribution Plan [Line Items]
Percent of weekly contribution incentive	10.00%
After January 1, 2013 [Member]
Defined Contribution Plan [Line Items]
Percentage of maximum annual employee contribution	100.00%

Name:	idsa_DefinedContributionPlanLineItems
Namespace Prefix:	idsa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Defined Contribution Plan, Weekely Contribution Per Employee, Percent

+ References

No definition available.

+ Details

Name:	idsa_DefinedContributionPlanWeekelyContributionPerEmployeePercent
Namespace Prefix:	idsa_
Data Type:	num:percentItemType
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=6414718&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

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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

- Definition

Maximum amount the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

- Details

Name:	idsa_DefinedContributionPlanDateRangeAxis=idsa_AfterJanuary12013Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: