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v2.4.1.9

Significant Accounting Policies - Goodwill, Income Taxes, and Cash and Cash Equivalents (Details) (USD $) | Mar. 31, 2015 | Sep. 30, 2014
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Goodwill [Line Items] |  |
Goodwill | $ 8,595,000 us-gaap_Goodwill | $ 8,595,000 us-gaap_Goodwill
Deferred tax assets | 15,700,000 us-gaap_DeferredTaxAssetsLiabilitiesNet | 15,700,000 us-gaap_DeferredTaxAssetsLiabilitiesNet
Valuation allowance | (11,100,000)dlhc_DeferredTaxAssetsValuationAllowanceCurrentandNoncurrent | (11,100,000)dlhc_DeferredTaxAssetsValuationAllowanceCurrentandNoncurrent
Cash, FDIC Insured Amount | $ 250,000 us-gaap_CashFDICInsuredAmount |

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- Definition Deferred Tax Assets, Valuation Allowance, Current and Noncurrent + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Details
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