DLH (DLHC) 10-Q 5 May 21 2021 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Document and Entity Information
Entity Registrant Name	DLH Holdings Corp.
Entity Central Index Key	0000785557
Document Type	10-Q
Document Period End Date	Mar. 31, 2021
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		12,544,906
Document Quarterly Report	true
Document Transition Report	false

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 61,506	$ 54,798	$ 119,358	$ 107,036
Contract costs	48,722	42,941	94,727	84,281
General and administrative costs	6,135	6,260	12,285	12,174
Depreciation and amortization	2,029	1,760	4,091	3,619
Total operating costs	56,886	50,961	111,103	100,074
Income from operations	4,620	3,837	8,255	6,962
Interest expense, net	1,004	906	2,084	1,846
Income before income taxes	3,616	2,931	6,171	5,116
Income tax expense	1,049	855	1,790	1,488
Net income	$ 2,567	$ 2,076	$ 4,381	$ 3,628
Net income per share - basic (in dollars per share)	$ 0.20	$ 0.17	$ 0.35	$ 0.30
Net income per share - diluted (in dollars per share)	$ 0.19	$ 0.16	$ 0.32	$ 0.28
Weighted average common stock outstanding
Basic (in shares)	12,544	12,299	12,521	12,193
Diluted (in shares)	13,570	13,003	13,568	12,886

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 420	$ 1,357
Accounts receivable	41,675	32,541
Other current assets	3,469	3,499
Total current assets	45,564	37,397
Equipment and improvements, net	2,593	3,339
Operating lease right-of-use assets	21,055	22,427
Deferred taxes, net	0	37
Goodwill	65,643	67,144
Intangible assets, net	50,762	52,612
Other long-term assets	539	606
Total assets	186,156	183,562
CURRENT LIABILITIES
Debt obligations - current, net of deferred financing costs	3,124	6,727
Operating lease liabilities - current	2,130	2,045
Accrued payroll	12,012	10,611
Accounts payable, accrued expenses, and other current liabilities	30,824	28,578
Total current liabilities	48,090	47,961
Deferred taxes, net	1,475	0
Debt obligations - long-term, net of deferred financing costs	57,199	60,544
Operating lease liabilities - long-term	20,499	21,620
Total long-term liabilities	79,173	82,164
Total liabilities	127,263	130,125
SHAREHOLDERS’ EQUITY
Common stock, $0.001 par value; authorized 40,000 shares; issued and outstanding 12,545 and 12,404 at March 31, 2021 and September 30, 2020, respectively	13	12
Additional paid-in capital	86,942	85,868
Accumulated deficit	(28,062)	(32,443)
Total shareholders’ equity	58,893	53,437
Total liabilities and shareholders' equity	$ 186,156	$ 183,562

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2021	Sep. 30, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	40,000,000	40,000,000
Common stock, issued (in shares)	12,545,000	12,404,000
Common stock, outstanding (in shares)	12,545,000	12,404,000

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating activities
Net income	$ 4,381	$ 3,628
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,091	3,619
Amortization of deferred financing costs	413	374
Stock based compensation expense	844	384
Deferred taxes, net	1,512	1,258
Gain from lease modification	0	(121)
Changes in operating assets and liabilities
Accounts receivable	(9,134)	(11,722)
Other current assets	30	(1,211)
Accrued payroll	1,401	1,913
Accounts payable, accrued expenses, and other current liabilities	2,245	2,280
Other long-term assets/liabilities	336	260
Net cash provided by operating activities	6,119	662
Investing activities
Business acquisition adjustment, net of cash acquired	59	0
Purchase of equipment and improvements	(53)	(141)
Net cash provided by (used in) investing activities	6	(141)
Financing activities
Borrowing on senior debt	0	2,000
Repayment of senior debt	(7,250)	(3,000)
Payment of debt financing costs	(43)	(3)
Repurchase of common stock	0	(211)
Proceeds from issuance of common stock upon exercise of options	231	27
Net cash used in financing activities	(7,062)	(1,187)
Net change in cash and cash equivalents	(937)	(666)
Cash and cash equivalents at beginning of period	1,357	1,790
Cash and cash equivalents at end of period	420	1,124
Supplemental disclosures of cash flow information
Cash paid during the period for interest	1,639	1,583
Cash paid during the period for income taxes	184	409
Supplemental disclosures of non-cash activity
Non-cash cancellation of common stock	$ 0	$ 211

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative-effect adjustment for adoption of ASC 842	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated DeficitCumulative-effect adjustment for adoption of ASC 842
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Beginning Balance (in shares) at Sep. 30, 2019			12,036	0
Beginning Balance at Sep. 30, 2019	$ 45,571	$ (2)	$ 12	$ 0	$ 85,114	$ (39,555)	$ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Expense related to director restricted stock unit (in shares)			90
Expense related to director restricted stock unit	173				173
Expense related to employee stock based compensation	211				211
Repurchases of common stock (in shares)				28
Repurchases of common stock	(113)			$ (113)
Cancellation of common stock (in shares)			(117)	(28)
Cancellation of common stock	(98)			$ 113	(211)
Exercise of stock options (in shares)			345
Exercise of stock options	27				27
Net income	3,628					3,628
Ending Balance (in shares) at Mar. 31, 2020			12,354	0
Ending Balance at Mar. 31, 2020	49,397		$ 12	$ 0	85,314	(35,929)
Beginning Balance (in shares) at Dec. 31, 2019			12,124	27
Beginning Balance at Dec. 31, 2019	47,145		$ 12	$ (111)	85,249	(38,005)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Expense related to director restricted stock unit	87				87
Expense related to employee stock based compensation	95				95
Repurchases of common stock (in shares)				1
Repurchases of common stock	(2)			$ (2)
Cancellation of common stock (in shares)			(95)	(28)
Cancellation of common stock	(4)			$ 113	(117)
Exercise of stock options (in shares)			325
Exercise of stock options	0
Net income	2,076					2,076
Ending Balance (in shares) at Mar. 31, 2020			12,354	0
Ending Balance at Mar. 31, 2020	$ 49,397		$ 12	$ 0	85,314	(35,929)
Beginning Balance (in shares) at Sep. 30, 2020	12,404		12,404	0
Beginning Balance at Sep. 30, 2020	$ 53,437		$ 12	$ 0	85,868	(32,443)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Expense related to director restricted stock unit (in shares)			78
Expense related to director restricted stock unit	232				232
Expense related to employee stock based compensation	$ 612				612
Exercise of stock options (in shares)	63		63
Exercise of stock options	$ 231		$ 1		230
Net income	$ 4,381					4,381
Ending Balance (in shares) at Mar. 31, 2021	12,545		12,545	0
Ending Balance at Mar. 31, 2021	$ 58,893		$ 13	$ 0	86,942	(28,062)
Beginning Balance (in shares) at Dec. 31, 2020			12,544	0
Beginning Balance at Dec. 31, 2020	55,935		$ 13	$ 0	86,551	(30,629)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Expense related to director restricted stock unit	116				116
Expense related to employee stock based compensation	270				270
Exercise of stock options (in shares)			1
Exercise of stock options	5				5
Net income	$ 2,567					2,567
Ending Balance (in shares) at Mar. 31, 2021	12,545		12,545	0
Ending Balance at Mar. 31, 2021	$ 58,893		$ 13	$ 0	$ 86,942	$ (28,062)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements include the accounts of DLH Holdings Corp. and its subsidiaries (together with its subsidiaries, "DLH" or the "Company" and also referred to as "we," "us" and "our"), all of which are wholly owned. All significant intercompany balances and transactions have been eliminated in consolidation. The accompanying financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these statements do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In management's opinion, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the period ended March 31, 2021 are not necessarily indicative of the results that may be expected for the year ending September 30, 2021. Amounts as of and for the periods ended March 31, 2021 and March 31, 2020 are unaudited. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended September 30, 2020 filed with the Securities and Exchange Commission on December 7, 2020.

Business Overview

Business Overview	6 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business Overview	Business Overview The Company is a full-service provider of technology-enabled health and human services, providing solutions to three market focus areas: Defense and Veterans' Health Solutions, Human Solutions and Services, and Public Health and Life Sciences. We deliver domain-specific expertise, industry best-practices and innovations to customers across these markets leveraging seven core competencies: secure data analytics, clinical trials and laboratory services, case management, performance evaluation, system modernization, operational logistics and readiness, and strategic digital communications. The Company manages its operations from its principal executive offices in Atlanta, Georgia, and we have a complementary headquarters office in Silver Spring, Maryland. We employ over 2,200 skilled employees workin g in more than 30 locations throughout the United States and one location overseas. At present, the Company derives 99% of its revenue from agencies of the Federal government, primarily as a prime contractor but also as a subcontractor to other Federal prime contractors.

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Mar. 31, 2021
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions for the application of U.S. GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") and other reference rates expected to be discontinued due to reference rate reform. ASU 2020-04 became effective on March 12, 2020 for all entities meeting certain criteria. The Company may elect to apply the amendments using a prospective approach through December 31, 2022. The Company is currently assessing the impact of electing this standard on its consolidated financial statements and related disclosures and does not expect the impact to be material. In April 2020, the FASB issued a Staff Q&A, Topic 842 and 840: Accounting For Lease Concessions Related to the Effects of the COVID-19 Pandemic in order to provide clarity regarding the accounting treatment for lease concessions provided as a result of COVID-19. Under existing lease guidance, changes to certain lease terms not specified in the original lease agreement require modification accounting treatment. To provide relief, the FASB Staff Q&A permits alternatives to modification accounting under Topic 842. For concessions related to the effects of the COVID-19 pandemic that do not result in a substantial increase in the rights of the lessor or our obligations as the lessee, we are not required to analyze each contract to determine whether enforceable rights and obligations for concessions exist in the lease agreement and can elect to apply or not apply the lease modification guidance in Topic 842. For fiscal year 2021, we elected to account for lease concessions received for one of our operating leases as a resolution of a contingency, whereby we remeasured our lease liability and recorded the adjustment against the right-of-use asset, without reassessing lease classification or modifying the original discount rate. As a result of this election, our lease liability and right-of-use-asset decreased by less than $0.1 million. In August 2020, the FASB issued ASU 2020-06, which amends the measurement and disclosure of convertible instruments, contracts in an entity's own equity, and EPS guidance. The guidance can be adopted using a modified retrospective method or a fully retrospective method. The amendments are effective for fiscal years beginning after December 15, 2021 for public entities, excluding those that are smaller reporting companies. For all other entities the amendments are effective for fiscal years beginning after December 15, 2023. The Company does not expect the update to have a material impact on its consolidated financial statements and related disclosures.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates include valuation of goodwill and intangible assets, interest rate swaps, stock-based compensation, right-of-use assets and lease liabilities, valuation allowances established against accounts receivable and deferred tax assets, and measurement of loss development on workers’ compensation claims. We evaluate these estimates and judgments on an ongoing basis and base our estimates on historical experience, current and expected future outcomes, third-party evaluations and various other assumptions that we believe are reasonable under the circumstances. The results of these estimates form the basis for making judgments about the carrying values of assets and liabilities as well as identifying and assessing the accounting treatment with respect to commitments and contingencies. We revise material accounting estimates if changes occur, such as more experience is acquired, additional information is obtained, or there is new information on which an estimate was or can be based. Actual results could differ from those estimates. In particular, a material reduction in the fair value of goodwill could have a material adverse effect on the Company’s financial position and results of operations. We account for the effect of a change in accounting estimate during the period in which the change occurs. Fair Value of Financial Instruments The carrying amounts of the Company's cash and cash equivalents, accounts receivable, accrued expenses, and accounts payable approximate fair value due to the short-term nature of these instruments. The fair values of the Company's debt instruments approximated fair value because the underlying interest rates approximate market rates that the Company could obtain for similar instruments at the balance sheet dates. Long-Lived Assets Our long-lived assets include equipment and improvements, intangible assets, right-of-use assets, and goodwill. The Company continues to review long-lived assets for possible impairment or loss of value at least annually, or more frequently upon the occurrence of an event or when circumstances indicate that a reporting unit's carrying amount is greater than its fair value. Equipment and improvements are stated at cost. Depreciation and amortization are provided using the straight-line method over the estimated useful asset lives (3 to 7 years) and the shorter of the initial lease term or estimated useful life for leasehold improvements. Maintenance and repair costs are expensed as incurred. Intangible assets (other than goodwill) are originally recorded at fair value and are amortized on a straight-line basis over their estimated useful lives of 10 years. Right-of-use assets are measured at the present value of future minimum lease payments, including all probable renewals, plus lease payments made to the lessor before or at lease commencement and indirect costs paid, less incentives received. Our right-of-use assets include long-term leases for facilities and equipment and are amortized over their respective lease terms. Goodwill At September 30, 2020, we performed a goodwill impairment evaluation on the year-end carrying value of approximately $67 million. We performed a qualitative assessment of factors to determine whether it was necessary to perform the goodwill impairment test. Based on the results of the work performed, the Company has concluded that no impairment loss was warranted at September 30, 2020. For the six months ended March 31, 2021, the Company determined that no change in business conditions occurred which would have a material adverse effect on the valuation of goodwill. Our assessment incorporated effects of the COVID-19 pandemic, which is not expected to have a meaningful impact on our financial results. Notwithstanding this evaluation, factors including non-renewal of a major contract or other substantial changes in business conditions could have a material adverse effect on the valuation of goodwill in future periods and the resulting charge could be material to future periods’ results of operations. Income Taxes The Company accounts for income taxes in accordance with the liability method, whereby deferred tax assets and liabilities are determined based on the difference between the financial statement and tax bases of assets and liabilities, using enacted tax rates in effect for the year in which the differences are expected to reverse. Deferred tax assets are reflected on the consolidated balance sheet when it is determined that it is more likely than not that the asset will be realized. This guidance also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax asset will not be realized. We account for uncertain tax positions by recognizing the financial statement effects of a tax position only when, based upon the technical merits, it is "more-likely-than-not" that the position will be sustained upon examination. We had no uncertain tax positions at either March 31, 2021 or September 30, 2020. We report interest and penalties as a component of income tax expense. During the three and six months ended March 31, 2021 and March 31, 2020, we recognized no interest and no penalties related to income taxes. Stock-Based Equity Compensation The Company uses the fair value-based method for stock-based equity compensation. Options issued are designated as either an incentive stock option or a non-statutory stock option. No option may be granted with a term of more than 10 years from the date of grant. Option awards may depend on achievement of certain performance measures determined by the Compensation Committee of our Board. Shares issued upon option exercise are newly issued common shares. All awards to employees and non-employees are recorded at fair value on the date of the grant and expensed over the period of vesting. The Company uses a Monte Carlo binomial and Black Scholes option pricing models, as appropriate to estimate the fair value of each stock option at the date of grant. Any consideration paid by the option holders to purchase shares is credited to common stock. Cash and Cash Equivalents We consider all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents. We maintain cash balances at financial institutions that are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to $250,000. Deposits held with financial institutions may exceed the $250,000 limit. Earnings Per Share Basic earnings per share is calculated by dividing income available to common shareholders by the weighted average number of common stock outstanding and restricted stock grants that vested or are likely to vest during the period. Diluted earnings per share is calculated by dividing income available to common shareholders by the weighted average number of basic common shares outstanding, adjusted to reflect potentially dilutive securities. Diluted earnings per share is calculated using the treasury stock method. Treasury Stock The Company periodically purchases its own common stock that is traded on public markets as part of announced stock repurchase programs. The repurchased common stock is classified as treasury stock on the consolidated balance sheets and held at cost. As of March 31, 2021 and September 30, 2020, the Company did not hold any treasury stock. Preferred Stock Our certificate of incorporation authorizes the issuance of "blank check" preferred stock with designations, rights and preferences as may be determined from time to time by our board of directors up to an aggregate of 5,000,000 shares of preferred stock. As of March 31, 2021 and September 30, 2020, the Company has not issued any preferred stock. Interest Rate Swap The Company uses derivative financial instruments to manage interest rate risk associated with its variable rate debt. The Company's objective in using these interest rate derivatives is to manage its exposure to interest rate movements and reduce volatility of interest expense. The gains and losses due to changes in the fair value of the interest rate swap agreements completely offset changes in the fair value of the hedged portion of the underlying debt. Offsetting changes in fair value of both the interest rate swaps and the hedged portion of the underlying debt both are recognized in interest expense in the Consolidated Statements of Operations. The Company does not hold or issue any derivative instruments for trading or speculative purposes. Risks & Uncertainties Management continues to evaluate the impact of the COVID-19 pandemic on the industry, primarily through the introduction of additional regulations and restrictions. Due to the nature of our work, we believe that these impacts are mitigated and concluded that while it is reasonably possible that the virus could have a negative effect on the Company's financial position and the results of its operations, the specific impact is not readily determinable as of the date of these financial statements.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition We recognize revenue over time when there is a continuous transfer of control to our customer. For our U.S. government contracts, this continuous transfer of control to the customer is supported by clauses in the contract that allow the U.S. government to unilaterally terminate the contract for convenience, pay us for costs incurred plus a reasonable profit and take control of any work in process. When control is transferred over time, revenue is recognized based on the extent of progress towards completion of the performance obligation. For services contracts, we satisfy our performance obligations as services are rendered. We use a cost-based input method to measure progress. Contract costs include labor, material and allocable indirect expenses. For time-and-material contracts, we bill the customer per labor hour and per material, and revenue is recognized in the amount invoiced since the amount corresponds directly to the value of our performance to date. We consider control to transfer when we have a present right to payment. Essentially, all of our contracts satisfy their performance obligations over time. Contracts are often modified to account for changes in contract specifications and requirements. Contract modifications impact performance obligations when the modification either creates new or changes the existing enforceable rights and obligations. The effect of a contract modification on the transaction price and our measure of progress for the performance obligation to which it relates is recognized as an adjustment to revenue and profit cumulatively. Furthermore, a significant change in one or more estimates could affect the profitability of our contracts. We recognize adjustments in estimated profit on contracts in the period identified. For time-and-materials contracts, revenue is recognized to the extent of billable rates times hours delivered plus materials and other reimbursable costs incurred. Revenue for cost-reimbursable contracts is recorded as reimbursable costs are incurred, including an estimated share of the applicable contractual fees earned. Contract costs are expensed as incurred. Estimated losses are recognized when identified. Contract assets - Amounts are invoiced as work progresses in accordance with agreed-upon contractual terms. In part, revenue recognition occurs before we have the right to bill, resulting in contract assets. These contract assets are reported within receivables, net on our consolidated balance sheets and are invoiced in accordance with payment terms defined in each contract. Period end balances will vary from period to period due to agreed-upon contractual terms. Refer to the Liquidity and Capital Management located in Managements' Discussion and Analysis of Financial Condition and Results of Operations in this report for more information. Contract liabilities - Amounts are a result of billings in excess of costs incurred. These contract liabilities are reported within accounts payable, accrued expenses, and other current liabilities on our consolidated balance sheets. The following table summarizes the contract balances recognized on the Company's consolidated balance sheets: (in thousands) March 31, September 30, 2021 2020 Contract assets $ 7,103 $ 7,943 Contract liabilities $ 317 $ 200 Disaggregation of revenue from contracts with customers We disaggregate our revenue from contracts with customers by customer, contract type, as well as whether the Company acts as prime contractor or subcontractor. We believe these categories best depict how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. The following tables present our revenue disaggregated by these categories: Revenue by customer (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Department of Veterans Affairs $ 27,871 $ 25,556 $ 55,513 $ 49,619 Department of Health and Human Services 23,341 25,861 43,503 49,951 Department of Defense 7,522 342 14,502 673 Other 2,772 3,039 5,840 6,793 Total revenue $ 61,506 $ 54,798 $ 119,358 $ 107,036 Revenue by contract type (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Time and materials $ 46,508 $ 38,162 $ 90,702 $ 74,603 Cost reimbursable 12,005 15,430 23,726 30,046 Firm fixed price 2,993 1,206 4,930 2,387 Total revenue $ 61,506 $ 54,798 $ 119,358 $ 107,036 Revenue by whether the Company acts as a prime contractor or a subcontractor (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Prime contractor $ 53,888 $ 50,920 $ 105,652 $ 99,815 Subcontractor 7,618 3,878 13,706 7,221 Total revenue $ 61,506 $ 54,798 $ 119,358 $ 107,036

Leases

Leases	6 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	Leases We have leases for facilities and office equipment. Our lease liabilities are recognized as the present value of the future minimum lease payments over the lease term. Our right-of-use assets are recognized as the present value of the future minimum lease payments over the lease term plus lease payments made to the lessor before or at lease commencement less unamortized lease incentives and the balance remaining in deferred rent liability under ASC 840. Our lease payments consist of fixed and in-substance fixed amounts attributable to the use of the underlying asset over the lease term. Variable lease payments that do not depend on an index rate or are not in-substance fixed payments are excluded in the measurement of right-of-use assets and lease liabilities and are expensed in the period incurred. The incremental borrowing rate on our credit facility was used in determining the present value of future minimum lease payments. Some of our lease agreements include options to extend the lease term or terminate the lease. These options are accounted for in our right-of-use assets and lease liabilities when it is reasonably certain that the Company will extend the lease term or terminate the lease. The Company does not have any finance leases. As of March 31, 2021, operating leases for facilities and equipment have remaining lease terms of 1.8 to 10.0 years. The following table summarizes lease balances in our consolidated balance sheets at March 31, 2021 and September 30, 2020 (in thousands): March 31, 2021 September 30, 2020 Operating lease right-of-use assets $ 21,055 $ 22,427 Operating lease liabilities, current $ 2,130 $ 2,045 Operating lease liabilities - long-term 20,499 21,620 Total operating lease liabilities $ 22,629 $ 23,665 The Company subleases a portion of one of its leased facilities. The sublease is classified as an operating lease with respect to the underlying asset. The sublease was assumed from the acquisition of Social & Scientific Systems, Inc. ("S3") in fiscal 2019. The sublease term is 5 years with two additional 1-year term extension options. The Company's lease costs are included within general and administrative costs in our Consolidated Statements of Operations. For the three and six months ended March 31, 2021 and March 31, 2020, total lease costs for our operating leases are as follows (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Operating $ 890 $ 1,253 $ 1,860 $ 2,565 Short-term 42 47 71 103 Variable 25 3 30 23 Sublease income (92) (79) (187) (128) Total lease costs $ 865 $ 1,224 $ 1,774 $ 2,563 The Company's future minimum lease payments as of March 31, 2021 are as follows: For the Fiscal Year Ending September 30, (in thousands) 2021 (remaining) $ 1,657 2022 3,501 2023 3,391 2024 3,251 2025 3,092 Thereafter 14,684 Total future lease payments 29,576 Less: imputed interest (6,947) Present value of future minimum lease payments 22,629 Less: current portion of operating lease liabilities (2,130) Long-term operating lease liabilities $ 20,499 Other information related to our leases are as follows: March 31, 2021 Weighted-average remaining lease term 8.7 years Weighted-average discount rate 5.99 % Three Months Ended Six Months Ended March 31, March 31, (Amounts in thousands) Ref 2021 2020 2021 2020 Cash paid for amounts included in the measurement of lease liabilities $ 786 $ 1,197 $ 1,667 $ 2,467 New lease liabilities, net of new right-of-use assets (a) $ — $ — $ — $ 245 Lease liabilities arising from obtaining right-of-use-assets (a) $ — $ — $ — $ 7,179 Ref (a): Changes resulted from an amended and remeasured operating lease

Supporting Financial Informatio

Supporting Financial Information	6 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supporting Financial Information	Supporting Financial Information Accounts receivable (in thousands) March 31, September 30, Ref 2021 2020 Billed receivables $ 34,572 $ 24,598 Contract assets 7,103 7,943 Total accounts receivable 41,675 32,541 Less: Allowance for doubtful accounts (a) — — Accounts receivable, net $ 41,675 $ 32,541 Ref (a): Accounts receivable are non-interest bearing, unsecured and carried at net realizable value. We evaluate our receivables on a quarterly basis and determine whether an allowance is appropriate based on specific collection issues. No allowance for doubtful accounts was deemed necessary at either March 31, 2021 or September 30, 2020. Other current assets (in thousands) March 31, September 30, 2021 2020 Prepaid insurance and benefits $ 255 $ 665 Other receivables 1,524 1,363 Other prepaid expenses 1,690 1,471 Other current assets $ 3,469 $ 3,499 Equipment and improvements, net (in thousands) March 31, September 30, Ref 2021 2020 Furniture and equipment $ 958 $ 958 Computer equipment 1,212 1,171 Computer software 4,353 4,341 Leasehold improvements 1,595 1,595 Total equipment and improvements 8,118 8,065 Less accumulated depreciation and amortization (a) (5,525) (4,726) Equipment and improvements, net $ 2,593 $ 3,339 Ref (a): Depreciation expense was $0.4 million and $0.6 million for the three months ended March 31, 2021 and 2020, respectively and $0.8 million and $1.2 million for the six months ended March 31, 2021 and 2020, respectively. Intangible assets (in thousands) March 31, September 30, Ref 2021 2020 Intangible assets (a) Customer contracts and related customer relationships $ 62,281 $ 45,600 Covenants not to compete 522 480 Trade name 3,051 2,109 Acquired intangibles - IBA acquisition (b) — 16,223 Total intangible assets 65,854 64,412 Less accumulated amortization Customer contracts and related customer relationships (14,264) (11,150) Covenants not to compete (238) (212) Trade name (590) (438) Total accumulated amortization (15,092) (11,800) Intangible assets, net $ 50,762 $ 52,612 Ref (a): Intangible assets subject to amortization. The intangibles are amortized on a straight-line basis over their estimated useful lives of 10 years. The total amount of amortization expense was $1.6 million and $1.2 million for the three months ended March 31, 2021 and 2020, respectively and $3.3 million and $2.4 million for the six months ended March 31, 2021 and 2020, respectively. Ref (b): Intangible assets reported at September 30, 2020 from the acquisition of IBA were based on an estimate and revised in the first quarter of fiscal 2021. A third party valued the acquired intangibles to be the $17.7 million; $16.7 million was attributable to customer contracts and customer relationships, and $0.9 million to trade name, and $0.1 million to covenants not to compete, Estimated amortization expense for future years: (in thousands) Remaining Fiscal 2021 $ 3,293 Fiscal 2022 6,585 Fiscal 2023 6,585 Fiscal 2024 6,585 Fiscal 2025 6,585 Thereafter 21,129 Total amortization expense $ 50,762 Goodwill The changes in the carrying amount of goodwill as of March 31, 2021 are as follows: (in thousands) Ref Total Balance at September 30, 2019 $ 52,758 Preliminary increase from IBA acquisition 14,386 Balance at September 30, 2020 67,144 Preliminary adjustment from IBA acquisition (a) (1,694) Balance at December 31, 2020 65,450 Final adjustment from IBA acquisition (a) 193 Balance at March 31, 2021 $ 65,643 Ref (a): The adjustments were determined based on third party valuation. Accounts payable, accrued expenses, and other current liabilities (in thousands) March 31, September 30, 2021 2020 Accounts payable $ 15,891 $ 14,645 Accrued benefits 2,882 2,833 Accrued bonus and incentive compensation 1,492 2,340 Accrued workers' compensation insurance 6,512 5,529 Other accrued expenses 4,047 3,231 Accounts payable, accrued expenses, and other current liabilities $ 30,824 $ 28,578 Debt obligations (in thousands) March 31, September 30, 2021 2020 Bank term loan $ 62,750 $ 70,000 Less unamortized deferred financing costs (2,427) (2,729) Net bank debt obligations 60,323 67,271 Less current portion of bank debt obligations, net of deferred financing costs (3,124) (6,727) Long-term portion of bank debt obligations, net of deferred financing costs $ 57,199 $ 60,544 Interest expense Three Months Ended Six Months Ended March 31, March 31, (Amounts in thousands) Ref 2021 2020 2021 2020 Interest expense (a) $ (801) $ (742) $ (1,671) $ (1,593) Amortization of deferred financing costs (b) (203) (164) (413) (374) Other income (expense), net (c) — — — 121 Interest expense, net $ (1,004) $ (906) $ (2,084) $ (1,846) Ref (a): Interest expense on borrowing Ref (b): Amortization of expenses related to term loan and revolving line of credit Ref (c): Gain on lease modification due to a lease amendment

Credit Facilities

Credit Facilities	6 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Credit Facilities	Credit Facilities A summary of this loan facility as of March 31, 2021, is as follows: ($ in Millions) As of March 31, 2021 Lender Arrangement Loan Balance Interest Maturity Date First National Bank of Pennsylvania ("FNB") Secured term loan (a) $ 62.8 LIBOR* + 3.5% 09/30/2025 First National Bank of Pennsylvania ("FNB") Secured revolving line of credit (b) $ — LIBOR* + 3.5% 09/30/2025 *LIBOR rate as of March 31, 2021 was 0.12%. As of March 31, 2021, our LIBOR rate is subject to a minimum floor of 0.5%. (a) Represents the principal amounts payable on our term loan, which is secured by liens on substantially all of the assets of the Company. The principal of the term loan is payable in quarterly installments with the remaining balance due on September 30, 2025. The Credit Agreement requires compliance with a number of financial covenants and contains restrictions on our ability to engage in certain transactions. Among other matters, we must comply with limitations on the following: granting liens; incurring other indebtedness; maintenance of assets; investments in other entities and extensions of credit; mergers and consolidations; and changes in nature of business. The loan agreement also requires us to comply with certain quarterly financial covenants including: (i) a minimum fixed charge coverage ratio of at least 1.25 to 1.00, and (ii) a Funded Indebtedness to Adjusted EBITDA ratio not exceeding the ratio of 3.75:1.0 to 2.75:1.0 through maturity. Adjusted EBITDA ratio is calculated by dividing the Company's total interest-bearing debt by net income adjusted to exclude (i) interest and other expenses, (ii) provision for or benefit from income taxes, if any, (iii) depreciation and amortization, and (iv) non-recurring charges, losses or expenses to include transaction and non-cash equity expense. The term loan has an interest rate spread range from 2.5% to 4.5% depending on the funded indebtedness to adjusted EBITDA ratio. We are in compliance with all loan covenants and restrictions. We are required to pay quarterly amortization payments, which commenced in December 2020 through September 2025. The annual amortization amounts are $7.0 million for fiscal years 2021 and 2022 and $8.75 million each for fiscal years 2023 - 2025. The quarterly payments are equal installments. The Company made voluntary prepayments of term debt of $3.8 million during the quarter ended March 31, 2021, which satisfies mandatory principal amortization until December 31, 2021. In addition to quarterly payments of the outstanding indebtedness, the loan agreement also requires annual payments of a percentage of excess cash flow, as defined in the loan agreement. The loan agreement states that an excess cash flow recapture payment must be made equal to (a) 75% of the excess cash flow for the immediately preceding fiscal year in which indebtedness to consolidated EBITDA ratio is greater than or equal to 2.50:1.0; (b) 50% of the excess cash flow for the immediately preceding fiscal year in which the funded indebtedness to consolidated EBITDA Ratio is less than 2.50:1.0 but greater than or equal to 1.5:1.0; or (c) 0% of the excess cash flow for the immediately preceding fiscal year in which the funded indebtedness to consolidated EBITDA Ratio is less than 1.5:1.0. In addition, the Company must make additional mandatory prepayment of amounts outstanding based on proceeds received from asset sales and sales of certain equity securities or other indebtedness. For additional information regarding the schedule of future payment obligations, please refer to Note 11, Commitments and Contingencies . On September 30, 2019, we executed a floating-to-fixed interest rate swap with First National Bank ("FNB") as counter party. The notional amount in the floating-to-fixed interest rate swap for the current fiscal year is $28.8 million and matures in 2024. The notional amount was $36 million in the prior fiscal year. The remaining outstanding balance of our term loan is subject to interest rate fluctuations. On the notional amount, the Company pays a base fixed rate of 1.61%, plus applicable credit spread. As a result, for the six months ended March 31, 2021, interest expense has been increased by $0.2 million. (b) The secured revolving line of credit has a ceiling of up to $25.0 million. Borrowing on the line of credit is secured by liens on substantially all of the assets of the Company. The Company accessed funds from the revolving credit facility during the quarter, but has no outstanding balance at March 31, 2021. The Company's total borrowing availability, based on eligible accounts receivables at March 31, 2021, was $25.0 million. As part of the revolving credit facility, the lenders agreed to a sublimit of $5 million for letters of credit for the account of the Company, subject to applicable procedures.

Stock-based Compensation and Eq

Stock-based Compensation and Equity Grants	6 Months Ended
	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Stock-based Compensation and Equity Grants	Stock-based Compensation and Equity Grants Stock-based compensation expense Options issued under equity incentive plans were designated as either incentive stock or non-statutory stock options. No option is granted with a term of more than 10 years from the date of grant. Exercisability of option awards may depend on achievement of certain performance measures determined by the Compensation Committee of our Board. Shares issued upon option exercise are newly issued shares. As of March 31, 2021, there were 2.0 million shares available for grant. Stock-based compensation expense, shown in the table below, is recorded in general and administrative expenses included in our Consolidated Statements of Operations: Three Months Ended Six Months Ended Ref March 31, March 31, (Amounts in thousands) 2021 2020 2021 2020 DLH employees (a) $ 270 $ 95 $ 612 $ 211 Non-employee directors (b) 116 87 232 173 Total stock option expense $ 386 $ 182 $ 844 $ 384 Ref (a): Equity grants of restricted stock units were made in accordance with the DLH long-term incentive compensation policy for Named Executive Officers ("NEO") and totaled 147,431 restricted stock units issued and outstanding at March 31, 2021. Ref (b): Equity grants of restricted stock units were made in accordance with DLH compensation policy for non-employee directors and totaled 63,177 restricted stock units issued and outstanding at March 31, 2021. Unrecognized stock-based compensation expense (in thousands) March 31, Ref 2021 Unrecognized expense for DLH employees (a) $ 3,888 Unrecognized expense for non-employee directors 234 Total unrecognized expense $ 4,122 Ref (a): The remaining compensation expense is recognized as the requisite service is rendered. The compensation expense for that portion of awards has been based on the grant-date fair value of those awards as calculated for recognition purposes under applicable guidance. For options that vest based on the Company's common stock achieving and maintaining defined market prices, the Company values the awards with a Monte Carlo binomial model that utilizes various probability factors and other criterion in establishing fair value of the grant. The related compensation expense is recognized over the derived service period determined in the valuation. On a weighted average basis, this expense is expected to be recognized within the next 4.39 years. Stock option activity for the six months ended March 31, 2021 The aggregate intrinsic value in the table below represents the total pretax intrinsic value (i.e., the difference between the Company’s closing stock price on the last trading day of the period and the exercise price, times the number of shares) that would have been received by the option holders had all option holders exercised their in the money options on those dates. This amount will change based on the fair market value of the Company’s stock. (in years) Weighted Weighted Average (in thousands) (in thousands) Average Remaining Aggregate Number of Exercise Contractual Intrinsic Shares Price Term Value Options outstanding, September 30, 2020 2,129 $ 6.14 7.4 $ 6,593 Exercised (63) $ 3.62 — — Granted 245 $ 10.04 — — Cancelled (25) $ 6.28 — — Options outstanding, March 31, 2021 2,286 $ 7.03 7.5 $ 11,407 Stock options shares outstanding, vested, and unvested for the periods ended (in thousands) March 31, September 30, Ref 2021 2020 Vested and exercisable (a) 1,362 1,213 Unvested (b) 924 916 Options outstanding 2,286 2,129 Ref (a): Weighted average exercise price of vested and exercisable shares was $2.75 and $2.25 at March 31, 2021 and September 30, 2020, respectively. Aggregate intrinsic value was approximately $9.8 million and $6.1 million at March 31, 2021 and September 30, 2020, respectively. Weighted average contractual term remaining was 4.6 and 4.6 years at March 31, 2021 and September 30, 2020, respectively. Ref (b): Certain awards vest upon satisfaction of certain performance criteria.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is calculated by dividing income available to common shareholders by the weighted average number of common shares outstanding and restricted stock grants that vested or are likely to vest during the period. Diluted earnings per share is calculated by dividing income available to common shareholders by the weighted average number of basic common shares outstanding, adjusted to reflect potentially dilutive securities. Diluted earnings per share is calculated using the treasury stock method. (In thousands, except for per share amounts) Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Numerator: Net income $ 2,567 $ 2,076 $ 4,381 $ 3,628 Denominator: Denominator for basic net income per share - weighted-average outstanding shares 12,544 12,299 12,521 12,193 Effect of dilutive securities: Stock options and restricted stock 1,026 704 1,047 693 Denominator for diluted net income per share - weighted-average outstanding shares 13,570 13,003 13,568 12,886 Net income per share - basic $ 0.20 $ 0.17 $ 0.35 $ 0.30 Net income per share - diluted $ 0.19 $ 0.16 $ 0.32 $ 0.28

Commitment and Contingencies

Commitment and Contingencies	6 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Contractual obligations as of March 31, 2021 Payments Due Per Fiscal Year (Remaining) (Amounts in thousands) Total 2021 2022 2023 2024 2025 Thereafter Debt obligations $ 62,750 $ — $ 6,750 $ 8,750 $ 8,750 $ 38,500 $ — Facility leases 29,316 1,615 3,418 3,308 3,199 3,092 14,684 Equipment operating leases 260 42 83 83 52 — — Total Contractual Obligations $ 92,326 $ 1,657 $ 10,251 $ 12,141 $ 12,001 $ 41,592 $ 14,684 Worker's Compensation We accrue worker's compensation expense based on claims submitted, applying actuarial loss development factors to estimate the costs incurred but not yet recorded. Our accrued liability for claims development as of March 31, 2021 and September 30, 2020 was $6.5 million and $5.5 million, respectively. Legal Proceedings As a commercial enterprise and employer, the Company is subject to various claims and legal actions in the ordinary course of business. These matters can include professional liability, employment-relations issues, workers’ compensation, tax, payroll and employee-related matters, other commercial disputes arising in the course of its business, and inquiries and investigations by governmental agencies regarding our employment practices or other matters. The Company is not aware of any pending or threatened litigation that it believes is reasonably likely to have a material adverse effect on its results of operations, financial position, or cash flows.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Mar. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsThe Company has determined that for the three and six months ended March 31, 2021 there were no significant related party transactions that have occurred which require disclosure through the date that these financial statements were issued.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	6 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions for the application of U.S. GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") and other reference rates expected to be discontinued due to reference rate reform. ASU 2020-04 became effective on March 12, 2020 for all entities meeting certain criteria. The Company may elect to apply the amendments using a prospective approach through December 31, 2022. The Company is currently assessing the impact of electing this standard on its consolidated financial statements and related disclosures and does not expect the impact to be material. In April 2020, the FASB issued a Staff Q&A, Topic 842 and 840: Accounting For Lease Concessions Related to the Effects of the COVID-19 Pandemic in order to provide clarity regarding the accounting treatment for lease concessions provided as a result of COVID-19. Under existing lease guidance, changes to certain lease terms not specified in the original lease agreement require modification accounting treatment. To provide relief, the FASB Staff Q&A permits alternatives to modification accounting under Topic 842. For concessions related to the effects of the COVID-19 pandemic that do not result in a substantial increase in the rights of the lessor or our obligations as the lessee, we are not required to analyze each contract to determine whether enforceable rights and obligations for concessions exist in the lease agreement and can elect to apply or not apply the lease modification guidance in Topic 842. For fiscal year 2021, we elected to account for lease concessions received for one of our operating leases as a resolution of a contingency, whereby we remeasured our lease liability and recorded the adjustment against the right-of-use asset, without reassessing lease classification or modifying the original discount rate. As a result of this election, our lease liability and right-of-use-asset decreased by less than $0.1 million. In August 2020, the FASB issued ASU 2020-06, which amends the measurement and disclosure of convertible instruments, contracts in an entity's own equity, and EPS guidance. The guidance can be adopted using a modified retrospective method or a fully retrospective method. The amendments are effective for fiscal years beginning after December 15, 2021 for public entities, excluding those that are smaller reporting companies. For all other entities the amendments are effective for fiscal years beginning after December 15, 2023. The Company does not expect the update to have a material impact on its consolidated financial statements and related disclosures.
Use of Estimates	Use of Estimates
Fair Value of Financial Instruments	Fair Value of Financial Instruments The carrying amounts of the Company's cash and cash equivalents, accounts receivable, accrued expenses, and accounts payable approximate fair value due to the short-term nature of these instruments. The fair values of the Company's debt instruments approximated fair value because the underlying interest rates approximate market rates that the Company could obtain for similar instruments at the balance sheet dates.
Long-Lived Assets	Long-Lived Assets Our long-lived assets include equipment and improvements, intangible assets, right-of-use assets, and goodwill. The Company continues to review long-lived assets for possible impairment or loss of value at least annually, or more frequently upon the occurrence of an event or when circumstances indicate that a reporting unit's carrying amount is greater than its fair value. Equipment and improvements are stated at cost. Depreciation and amortization are provided using the straight-line method over the estimated useful asset lives (3 to 7 years) and the shorter of the initial lease term or estimated useful life for leasehold improvements. Maintenance and repair costs are expensed as incurred.
Leases	Right-of-use assets are measured at the present value of future minimum lease payments, including all probable renewals, plus lease payments made to the lessor before or at lease commencement and indirect costs paid, less incentives received. Our right-of-use assets include long-term leases for facilities and equipment and are amortized over their respective lease terms. We have leases for facilities and office equipment. Our lease liabilities are recognized as the present value of the future minimum lease payments
Goodwill	GoodwillAt September 30, 2020, we performed a goodwill impairment evaluation on the year-end carrying value of approximately $67 million. We performed a qualitative assessment of factors to determine whether it was necessary to perform the goodwill impairment test. Based on the results of the work performed, the Company has concluded that no impairment loss was warranted at September 30, 2020. For the six months ended March 31, 2021, the Company determined that no change in business conditions occurred which would have a material adverse effect on the valuation of goodwill. Our assessment incorporated effects of the COVID-19 pandemic, which is not expected to have a meaningful impact on our financial results. Notwithstanding this evaluation, factors including non-renewal of a major contract or other substantial changes in business conditions could have a material adverse effect on the valuation of goodwill in future periods and the resulting charge could be material to future periods’ results of operations.
Income Taxes	Income Taxes The Company accounts for income taxes in accordance with the liability method, whereby deferred tax assets and liabilities are determined based on the difference between the financial statement and tax bases of assets and liabilities, using enacted tax rates in effect for the year in which the differences are expected to reverse. Deferred tax assets are reflected on the consolidated balance sheet when it is determined that it is more likely than not that the asset will be realized. This guidance also requires that
Stock-Based Equity Compensation	Stock-Based Equity Compensation The Company uses the fair value-based method for stock-based equity compensation. Options issued are designated as either an incentive stock option or a non-statutory stock option. No option may be granted with a term of more than 10 years from the date of grant. Option awards may depend on achievement of certain performance measures determined by the Compensation Committee of our Board. Shares issued upon option exercise are newly issued common shares. All awards to employees and non-employees are recorded at fair value on the date of the grant and expensed over the period of vesting. The Company uses a Monte Carlo binomial and Black Scholes option pricing models, as appropriate to estimate the fair value of each stock option at the date of grant. Any consideration paid by the option holders to purchase shares is credited to common stock.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents. We maintain cash balances at financial institutions that are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to $250,000. Deposits held with financial institutions may exceed the $250,000 limit.
Earnings per Share	Earnings Per ShareBasic earnings per share is calculated by dividing income available to common shareholders by the weighted average number of common stock outstanding and restricted stock grants that vested or are likely to vest during the period. Diluted earnings per share is calculated by dividing income available to common shareholders by the weighted average number of basic common shares outstanding, adjusted to reflect potentially dilutive securities. Diluted earnings per share is calculated using the treasury stock method.
Treasury Stock and Preferred Stock	Treasury StockThe Company periodically purchases its own common stock that is traded on public markets as part of announced stock repurchase programs. The repurchased common stock is classified as treasury stock on the consolidated balance sheets and held at cost.Preferred StockOur certificate of incorporation authorizes the issuance of "blank check" preferred stock with designations, rights and preferences as may be determined from time to time by our board of directors up to an aggregate of 5,000,000 shares of preferred stock.
Interest Rate Swap	Interest Rate Swap The Company uses derivative financial instruments to manage interest rate risk associated with its variable rate debt. The Company's objective in using these interest rate derivatives is to manage its exposure to interest rate movements and reduce volatility of interest expense. The gains and losses due to changes in the fair value of the interest rate swap agreements completely offset changes in the fair value of the hedged portion of the underlying debt. Offsetting changes in fair value of both the interest rate swaps and the hedged portion of the underlying debt both are recognized in interest expense in the Consolidated Statements of Operations. The Company does not hold or issue any derivative instruments for trading or speculative purposes.
Revenue Recognition	Revenue Recognition We recognize revenue over time when there is a continuous transfer of control to our customer. For our U.S. government contracts, this continuous transfer of control to the customer is supported by clauses in the contract that allow the U.S. government to unilaterally terminate the contract for convenience, pay us for costs incurred plus a reasonable profit and take control of any work in process. When control is transferred over time, revenue is recognized based on the extent of progress towards completion of the performance obligation. For services contracts, we satisfy our performance obligations as services are rendered. We use a cost-based input method to measure progress. Contract costs include labor, material and allocable indirect expenses. For time-and-material contracts, we bill the customer per labor hour and per material, and revenue is recognized in the amount invoiced since the amount corresponds directly to the value of our performance to date. We consider control to transfer when we have a present right to payment. Essentially, all of our contracts satisfy their performance obligations over time. Contracts are often modified to account for changes in contract specifications and requirements. Contract modifications impact performance obligations when the modification either creates new or changes the existing enforceable rights and obligations. The effect of a contract modification on the transaction price and our measure of progress for the performance obligation to which it relates is recognized as an adjustment to revenue and profit cumulatively. Furthermore, a significant change in one or more estimates could affect the profitability of our contracts. We recognize adjustments in estimated profit on contracts in the period identified. For time-and-materials contracts, revenue is recognized to the extent of billable rates times hours delivered plus materials and other reimbursable costs incurred. Revenue for cost-reimbursable contracts is recorded as reimbursable costs are incurred, including an estimated share of the applicable contractual fees earned. Contract costs are expensed as incurred. Estimated losses are recognized when identified. Contract assets - Amounts are invoiced as work progresses in accordance with agreed-upon contractual terms. In part, revenue recognition occurs before we have the right to bill, resulting in contract assets. These contract assets are reported within receivables, net on our consolidated balance sheets and are invoiced in accordance with payment terms defined in each contract. Period end balances will vary from period to period due to agreed-upon contractual terms. Refer to the Liquidity and Capital Management located in Managements' Discussion and Analysis of Financial Condition and Results of Operations in this report for more information. Contract liabilities - Amounts are a result of billings in excess of costs incurred. These contract liabilities are reported within accounts payable, accrued expenses, and other current liabilities on our consolidated balance sheets. Disaggregation of revenue from contracts with customers

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Schedule of Contract Balances Recognized on the Company's Consolidated Balance Sheets	The following table summarizes the contract balances recognized on the Company's consolidated balance sheets: (in thousands) March 31, September 30, 2021 2020 Contract assets $ 7,103 $ 7,943 Contract liabilities $ 317 $ 200
Schedule of Disaggregation of Revenue From Contracts with Customers	The following tables present our revenue disaggregated by these categories: Revenue by customer (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Department of Veterans Affairs $ 27,871 $ 25,556 $ 55,513 $ 49,619 Department of Health and Human Services 23,341 25,861 43,503 49,951 Department of Defense 7,522 342 14,502 673 Other 2,772 3,039 5,840 6,793 Total revenue $ 61,506 $ 54,798 $ 119,358 $ 107,036 Revenue by contract type (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Time and materials $ 46,508 $ 38,162 $ 90,702 $ 74,603 Cost reimbursable 12,005 15,430 23,726 30,046 Firm fixed price 2,993 1,206 4,930 2,387 Total revenue $ 61,506 $ 54,798 $ 119,358 $ 107,036 Revenue by whether the Company acts as a prime contractor or a subcontractor (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Prime contractor $ 53,888 $ 50,920 $ 105,652 $ 99,815 Subcontractor 7,618 3,878 13,706 7,221 Total revenue $ 61,506 $ 54,798 $ 119,358 $ 107,036

Leases (Tables)

Leases (Tables)	6 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Schedule of Summarized Lease Balances in Consolidated Balance Sheet	The following table summarizes lease balances in our consolidated balance sheets at March 31, 2021 and September 30, 2020 (in thousands): March 31, 2021 September 30, 2020 Operating lease right-of-use assets $ 21,055 $ 22,427 Operating lease liabilities, current $ 2,130 $ 2,045 Operating lease liabilities - long-term 20,499 21,620 Total operating lease liabilities $ 22,629 $ 23,665
Schedule of Lease Costs and Other Information Related to Leases	The Company's lease costs are included within general and administrative costs in our Consolidated Statements of Operations. For the three and six months ended March 31, 2021 and March 31, 2020, total lease costs for our operating leases are as follows (in thousands): Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Operating $ 890 $ 1,253 $ 1,860 $ 2,565 Short-term 42 47 71 103 Variable 25 3 30 23 Sublease income (92) (79) (187) (128) Total lease costs $ 865 $ 1,224 $ 1,774 $ 2,563 Other information related to our leases are as follows: March 31, 2021 Weighted-average remaining lease term 8.7 years Weighted-average discount rate 5.99 % Three Months Ended Six Months Ended March 31, March 31, (Amounts in thousands) Ref 2021 2020 2021 2020 Cash paid for amounts included in the measurement of lease liabilities $ 786 $ 1,197 $ 1,667 $ 2,467 New lease liabilities, net of new right-of-use assets (a) $ — $ — $ — $ 245 Lease liabilities arising from obtaining right-of-use-assets (a) $ — $ — $ — $ 7,179 Ref (a): Changes resulted from an amended and remeasured operating lease
Schedule of Company's Future Lease Payments	The Company's future minimum lease payments as of March 31, 2021 are as follows: For the Fiscal Year Ending September 30, (in thousands) 2021 (remaining) $ 1,657 2022 3,501 2023 3,391 2024 3,251 2025 3,092 Thereafter 14,684 Total future lease payments 29,576 Less: imputed interest (6,947) Present value of future minimum lease payments 22,629 Less: current portion of operating lease liabilities (2,130) Long-term operating lease liabilities $ 20,499

Supporting Financial Informat_2

Supporting Financial Information (Tables)	6 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Accounts Receivable	Accounts receivable (in thousands) March 31, September 30, Ref 2021 2020 Billed receivables $ 34,572 $ 24,598 Contract assets 7,103 7,943 Total accounts receivable 41,675 32,541 Less: Allowance for doubtful accounts (a) — — Accounts receivable, net $ 41,675 $ 32,541 Ref (a): Accounts receivable are non-interest bearing, unsecured and carried at net realizable value. We evaluate our receivables on a quarterly basis and determine whether an allowance is appropriate based on specific collection issues. No allowance for doubtful accounts was deemed necessary at either March 31, 2021 or September 30, 2020.
Schedule of Other Current Assets	Other current assets (in thousands) March 31, September 30, 2021 2020 Prepaid insurance and benefits $ 255 $ 665 Other receivables 1,524 1,363 Other prepaid expenses 1,690 1,471 Other current assets $ 3,469 $ 3,499
Schedule of Equipment and Improvements, Net	Equipment and improvements, net (in thousands) March 31, September 30, Ref 2021 2020 Furniture and equipment $ 958 $ 958 Computer equipment 1,212 1,171 Computer software 4,353 4,341 Leasehold improvements 1,595 1,595 Total equipment and improvements 8,118 8,065 Less accumulated depreciation and amortization (a) (5,525) (4,726) Equipment and improvements, net $ 2,593 $ 3,339 Ref (a): Depreciation expense was $0.4 million and $0.6 million for the three months ended March 31, 2021 and 2020, respectively and $0.8 million and $1.2 million for the six months ended March 31, 2021 and 2020, respectively.
Schedule of Intangible Assets	Intangible assets (in thousands) March 31, September 30, Ref 2021 2020 Intangible assets (a) Customer contracts and related customer relationships $ 62,281 $ 45,600 Covenants not to compete 522 480 Trade name 3,051 2,109 Acquired intangibles - IBA acquisition (b) — 16,223 Total intangible assets 65,854 64,412 Less accumulated amortization Customer contracts and related customer relationships (14,264) (11,150) Covenants not to compete (238) (212) Trade name (590) (438) Total accumulated amortization (15,092) (11,800) Intangible assets, net $ 50,762 $ 52,612
Schedule of Estimated Amortization of Intangible Assets	Estimated amortization expense for future years: (in thousands) Remaining Fiscal 2021 $ 3,293 Fiscal 2022 6,585 Fiscal 2023 6,585 Fiscal 2024 6,585 Fiscal 2025 6,585 Thereafter 21,129 Total amortization expense $ 50,762
Schedule of Changes in Carrying Amount of Goodwill	Goodwill The changes in the carrying amount of goodwill as of March 31, 2021 are as follows: (in thousands) Ref Total Balance at September 30, 2019 $ 52,758 Preliminary increase from IBA acquisition 14,386 Balance at September 30, 2020 67,144 Preliminary adjustment from IBA acquisition (a) (1,694) Balance at December 31, 2020 65,450 Final adjustment from IBA acquisition (a) 193 Balance at March 31, 2021 $ 65,643
Schedule of Accounts Payable, Accrued Expenses, and Other Current Liabilities	Accounts payable, accrued expenses, and other current liabilities (in thousands) March 31, September 30, 2021 2020 Accounts payable $ 15,891 $ 14,645 Accrued benefits 2,882 2,833 Accrued bonus and incentive compensation 1,492 2,340 Accrued workers' compensation insurance 6,512 5,529 Other accrued expenses 4,047 3,231 Accounts payable, accrued expenses, and other current liabilities $ 30,824 $ 28,578
Schedule of Debt Obligations	Debt obligations (in thousands) March 31, September 30, 2021 2020 Bank term loan $ 62,750 $ 70,000 Less unamortized deferred financing costs (2,427) (2,729) Net bank debt obligations 60,323 67,271 Less current portion of bank debt obligations, net of deferred financing costs (3,124) (6,727) Long-term portion of bank debt obligations, net of deferred financing costs $ 57,199 $ 60,544
Schedule of Interest Expense	Interest expense Three Months Ended Six Months Ended March 31, March 31, (Amounts in thousands) Ref 2021 2020 2021 2020 Interest expense (a) $ (801) $ (742) $ (1,671) $ (1,593) Amortization of deferred financing costs (b) (203) (164) (413) (374) Other income (expense), net (c) — — — 121 Interest expense, net $ (1,004) $ (906) $ (2,084) $ (1,846) Ref (a): Interest expense on borrowing Ref (b): Amortization of expenses related to term loan and revolving line of credit Ref (c): Gain on lease modification due to a lease amendment

Credit Facilities (Tables)

Credit Facilities (Tables)	6 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Schedule of Loan Facility	A summary of this loan facility as of March 31, 2021, is as follows: ($ in Millions) As of March 31, 2021 Lender Arrangement Loan Balance Interest Maturity Date First National Bank of Pennsylvania ("FNB") Secured term loan (a) $ 62.8 LIBOR* + 3.5% 09/30/2025 First National Bank of Pennsylvania ("FNB") Secured revolving line of credit (b) $ — LIBOR* + 3.5% 09/30/2025

Stock-based Compensation and _2

Stock-based Compensation and Equity Grants (Tables)	6 Months Ended
	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Stock-based Compensation Expense	Stock-based compensation expense, shown in the table below, is recorded in general and administrative expenses included in our Consolidated Statements of Operations: Three Months Ended Six Months Ended Ref March 31, March 31, (Amounts in thousands) 2021 2020 2021 2020 DLH employees (a) $ 270 $ 95 $ 612 $ 211 Non-employee directors (b) 116 87 232 173 Total stock option expense $ 386 $ 182 $ 844 $ 384 Ref (a): Equity grants of restricted stock units were made in accordance with the DLH long-term incentive compensation policy for Named Executive Officers ("NEO") and totaled 147,431 restricted stock units issued and outstanding at March 31, 2021. Ref (b): Equity grants of restricted stock units were made in accordance with DLH compensation policy for non-employee directors and totaled 63,177 restricted stock units issued and outstanding at March 31, 2021. Unrecognized stock-based compensation expense (in thousands) March 31, Ref 2021 Unrecognized expense for DLH employees (a) $ 3,888 Unrecognized expense for non-employee directors 234 Total unrecognized expense $ 4,122 Ref (a): The remaining compensation expense is recognized as the requisite service is rendered. The compensation expense for that portion of awards has been based on the grant-date fair value of those awards as calculated for recognition purposes under applicable guidance. For options that vest based on the Company's common stock achieving and maintaining defined market prices, the Company values the awards with a Monte Carlo binomial model that utilizes various probability factors and other criterion in establishing fair value of the grant. The related compensation expense is recognized over the derived service period determined in the valuation. On a weighted average basis, this expense is expected to be recognized within the next 4.39 years.
Schedule of Stock Option Activity	The aggregate intrinsic value in the table below represents the total pretax intrinsic value (i.e., the difference between the Company’s closing stock price on the last trading day of the period and the exercise price, times the number of shares) that would have been received by the option holders had all option holders exercised their in the money options on those dates. This amount will change based on the fair market value of the Company’s stock. (in years) Weighted Weighted Average (in thousands) (in thousands) Average Remaining Aggregate Number of Exercise Contractual Intrinsic Shares Price Term Value Options outstanding, September 30, 2020 2,129 $ 6.14 7.4 $ 6,593 Exercised (63) $ 3.62 — — Granted 245 $ 10.04 — — Cancelled (25) $ 6.28 — — Options outstanding, March 31, 2021 2,286 $ 7.03 7.5 $ 11,407
Schedule of Option Shares Outstanding, Vested and Expected to Vest	Stock options shares outstanding, vested, and unvested for the periods ended (in thousands) March 31, September 30, Ref 2021 2020 Vested and exercisable (a) 1,362 1,213 Unvested (b) 924 916 Options outstanding 2,286 2,129 Ref (a): Weighted average exercise price of vested and exercisable shares was $2.75 and $2.25 at March 31, 2021 and September 30, 2020, respectively. Aggregate intrinsic value was approximately $9.8 million and $6.1 million at March 31, 2021 and September 30, 2020, respectively. Weighted average contractual term remaining was 4.6 and 4.6 years at March 31, 2021 and September 30, 2020, respectively. Ref (b): Certain awards vest upon satisfaction of certain performance criteria.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Schedule of Diluted Earnings per Share	(In thousands, except for per share amounts) Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 Numerator: Net income $ 2,567 $ 2,076 $ 4,381 $ 3,628 Denominator: Denominator for basic net income per share - weighted-average outstanding shares 12,544 12,299 12,521 12,193 Effect of dilutive securities: Stock options and restricted stock 1,026 704 1,047 693 Denominator for diluted net income per share - weighted-average outstanding shares 13,570 13,003 13,568 12,886 Net income per share - basic $ 0.20 $ 0.17 $ 0.35 $ 0.30 Net income per share - diluted $ 0.19 $ 0.16 $ 0.32 $ 0.28

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	6 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Contractual Obligations	Contractual obligations as of March 31, 2021 Payments Due Per Fiscal Year (Remaining) (Amounts in thousands) Total 2021 2022 2023 2024 2025 Thereafter Debt obligations $ 62,750 $ — $ 6,750 $ 8,750 $ 8,750 $ 38,500 $ — Facility leases 29,316 1,615 3,418 3,308 3,199 3,092 14,684 Equipment operating leases 260 42 83 83 52 — — Total Contractual Obligations $ 92,326 $ 1,657 $ 10,251 $ 12,141 $ 12,001 $ 41,592 $ 14,684

Business Overview (Details)

Business Overview (Details)	6 Months Ended
	Mar. 31, 2021employeelocationbusiness_areamarket	Mar. 31, 2020
Concentration Risk [Line Items]
Number of market focus areas | business_area	3
Number of market leveraging core competencies | market	7
Revenue from Contract with Customer | Customer concentration | Federal Government
Concentration Risk [Line Items]
Concentration risk percentage	99.00%
Revenue from Contract with Customer | Customer concentration | VA
Concentration Risk [Line Items]
Concentration risk percentage	47.00%	46.00%
Revenue from Contract with Customer | Customer concentration | HHS
Concentration Risk [Line Items]
Concentration risk percentage	36.00%	47.00%
U.S.
Concentration Risk [Line Items]
Number of employees | employee	2,200
Number of locations in which entity operates	30
Overseas
Concentration Risk [Line Items]
Number of locations in which entity operates	1

New Accounting Pronouncements (

New Accounting Pronouncements (Details) - COVID-19 $ in Millions	6 Months Ended
	Mar. 31, 2021USD ($)lease_concesion
New Accounting Pronouncement, Early Adoption [Line Items]
Number of operating leases accounted for as lease concessions | lease_concesion	1
Decrease in operating lease liabilities due to lease concessions	$ 0.1
Decrease in operating right-of-use assets due to lease concessions	$ 0.1

Significant Accounting Polici_3

Significant Accounting Policies (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Sep. 30, 2019
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated useful live of intangible assets				10 years
Goodwill	$ 67,144,000	$ 65,643,000		$ 65,643,000		$ 65,450,000	$ 52,758,000
Goodwill impairment	0
Uncertain tax positions	$ 0	0		0
Income tax interest expense		0	$ 0	0	$ 0
Income tax penalties expense		0	$ 0	0	$ 0
Cash, FDIC insured amount		$ 250,000		$ 250,000
Treasury stock (in shares)	0	0		0
Preferred shares authorized (in shares)		5,000,000		5,000,000
Preferred stock issued (in shares)	0	0		0
Employee Stock Option
Acquired Indefinite-lived Intangible Assets [Line Items]
Number of awards authorized for issuance (in shares)		0		0
Expiration term of share-based compensation plan				10 years
Minimum
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated useful of long-lived assets				3 years
Maximum
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated useful of long-lived assets				7 years

Revenue Recognition - Contract

Revenue Recognition - Contract Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Contract assets	$ 7,103	$ 7,943
Contract liabilities	$ 317	$ 200

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 61,506	$ 54,798	$ 119,358	$ 107,036
Prime contractor
Disaggregation of Revenue [Line Items]
Total revenue	53,888	50,920	105,652	99,815
Subcontractor
Disaggregation of Revenue [Line Items]
Total revenue	7,618	3,878	13,706	7,221
Time and materials
Disaggregation of Revenue [Line Items]
Total revenue	46,508	38,162	90,702	74,603
Cost reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	12,005	15,430	23,726	30,046
Firm fixed price
Disaggregation of Revenue [Line Items]
Total revenue	2,993	1,206	4,930	2,387
Department of Veterans Affairs
Disaggregation of Revenue [Line Items]
Total revenue	27,871	25,556	55,513	49,619
Department of Health and Human Services
Disaggregation of Revenue [Line Items]
Total revenue	23,341	25,861	43,503	49,951
Department of Defense
Disaggregation of Revenue [Line Items]
Total revenue	7,522	342	14,502	673
Other
Disaggregation of Revenue [Line Items]
Total revenue	$ 2,772	$ 3,039	$ 5,840	$ 6,793

Leases - Narrative (Details)

Leases - Narrative (Details)	6 Months Ended
	Mar. 31, 2021sublease_optionsublease
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of facilities subleased | sublease	1
Sublease term	5 years
Sublease number of additional extension options | sublease_option	2
Sublease extension option period	1 year
Facilities and Equipment | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Remaining lease term	1 year 9 months 18 days
Facilities and Equipment | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Remaining lease term	10 years

Leases - Summary of Lease Balan

Leases - Summary of Lease Balances in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 21,055	$ 22,427
Operating lease liabilities - current	2,130	2,045
Operating lease liabilities - long-term	20,499	21,620
Total operating lease liabilities	$ 22,629	$ 23,665

Leases - Lease Costs (Details)

Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Operating	$ 890	$ 1,253	$ 1,860	$ 2,565
Short-term	42	47	71	103
Variable	25	3	30	23
Sublease income	(92)	(79)	(187)	(128)
Total lease costs	$ 865	$ 1,224	$ 1,774	$ 2,563

Leases - Company's Future Minim

Leases - Company's Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Leases [Abstract]
2021 (remaining)	$ 1,657
2022	3,501
2023	3,391
2024	3,251
2025	3,092
Thereafter	14,684
Total future lease payments	29,576
Less: imputed interest	(6,947)
Total operating lease liabilities	22,629	$ 23,665
Less: current portion of operating lease liabilities	(2,130)	(2,045)
Long-term operating lease liabilities	$ 20,499	$ 21,620

Leases - Other Information Rela

Leases - Other Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Weighted-average remaining lease term	8 years 8 months 12 days		8 years 8 months 12 days
Weighted-average discount rate	5.99%		5.99%
Cash paid for amounts included in the measurement of lease liabilities	$ 786	$ 1,197	$ 1,667	$ 2,467
New lease liabilities, net of new right-of-use assets	0	0	0	245
Lease liabilities arising from obtaining right-of-use-assets	$ 0	$ 0	$ 0	$ 7,179

Supporting Financial Informat_3

Supporting Financial Information - Accounts Receivable (Details) - USD ($)	Mar. 31, 2021	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Billed receivables	$ 34,572,000	$ 24,598,000
Contract assets	7,103,000	7,943,000
Total accounts receivable	41,675,000	32,541,000
Less: Allowance for doubtful accounts	0	0
Accounts receivable, net	$ 41,675,000	$ 32,541,000

Supporting Financial Informat_4

Supporting Financial Information - Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid insurance and benefits	$ 255	$ 665
Other receivables	1,524	1,363
Other prepaid expenses	1,690	1,471
Other current assets	$ 3,469	$ 3,499

Supporting Financial Informat_5

Supporting Financial Information - Equipment and Improvements, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Furniture and equipment	$ 958		$ 958		$ 958
Computer equipment	1,212		1,212		1,171
Computer software	4,353		4,353		4,341
Leasehold improvements	1,595		1,595		1,595
Total equipment and improvements	8,118		8,118		8,065
Less accumulated depreciation and amortization	(5,525)		(5,525)		(4,726)
Equipment and improvements, net	2,593		2,593		$ 3,339
Depreciation expense	$ 400	$ 600	$ 800	$ 1,200

Supporting Financial Informat_6

Supporting Financial Information - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Sep. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 65,854		$ 65,854			$ 64,412
Total accumulated amortization	(15,092)		(15,092)			(11,800)
Intangible assets, net	50,762		$ 50,762			52,612
Estimated useful live of intangible assets			10 years
Amortization expense of intangible assets	1,600	$ 1,200	$ 3,300	$ 2,400
IBA
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross					$ 17,700	16,223
Customer contracts and related customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	62,281		62,281			45,600
Total accumulated amortization	(14,264)		(14,264)			(11,150)
Customer contracts and related customer relationships | IBA
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross					16,700
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	522		522			480
Total accumulated amortization	(238)		(238)			(212)
Covenants not to compete | IBA
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross					100
Trade name
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	3,051		3,051			2,109
Total accumulated amortization	$ (590)		$ (590)			$ (438)
Trade name | IBA
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross					$ 900

Supporting Financial Informat_7

Supporting Financial Information - Estimated Future Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Remaining Fiscal 2021	$ 3,293
Fiscal 2022	6,585
Fiscal 2023	6,585
Fiscal 2024	6,585
Fiscal 2025	6,585
Thereafter	21,129
Intangible assets, net	$ 50,762	$ 52,612

Supporting Financial Informat_8

Supporting Financial Information - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Goodwill [Roll Forward]
Beginning Balance	$ 65,450	$ 67,144	$ 52,758
Preliminary increase from IBA acquisition			14,386
Adjustment from IBA acquisition	193	(1,694)
Ending Balance	$ 65,643	$ 65,450	$ 67,144

Supporting Financial Informat_9

Supporting Financial Information - Accounts Payable, Accrued Expense and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable	$ 15,891	$ 14,645
Accrued benefits	2,882	2,833
Accrued bonus and incentive compensation	1,492	2,340
Accrued workers' compensation insurance	6,512	5,529
Other accrued expenses	4,047	3,231
Accounts payable, accrued expenses, and other current liabilities	$ 30,824	$ 28,578

Supporting Financial Informa_10

Supporting Financial Information - Debt Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Long-term debt	$ 62,750
Less current portion of bank debt obligations, net of deferred financing costs	(3,124)	$ (6,727)
Long-term portion of bank debt obligations, net of deferred financing costs	57,199	60,544
Secured Debt
Debt Instrument [Line Items]
Less unamortized deferred financing costs	(2,427)	(2,729)
Net bank debt obligations	60,323	67,271
Less current portion of bank debt obligations, net of deferred financing costs	(3,124)	(6,727)
Long-term portion of bank debt obligations, net of deferred financing costs	57,199	60,544
Secured Debt | Term Loans
Debt Instrument [Line Items]
Long-term debt	$ 62,750	$ 70,000

Supporting Financial Informa_11

Supporting Financial Information - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest expense	$ (801)	$ (742)	$ (1,671)	$ (1,593)
Amortization of deferred financing costs	(203)	(164)	(413)	(374)
Other income (expense), net	0	0	0	121
Interest expense, net	$ (1,004)	$ (906)	$ (2,084)	$ (1,846)

Credit Facilities - Summary of

Credit Facilities - Summary of Loan Facility (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2021	Sep. 30, 2020
Line of Credit Facility [Line Items]
Total bank debt obligation	$ 62,750
Secured Debt | Term Loans
Line of Credit Facility [Line Items]
Total bank debt obligation	$ 62,750	$ 70,000
Secured Debt | Term Loans | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate percentage	0.035%
Interest rate spread	0.12%
Interest rate floor	0.50%
Secured Debt | Revolving Line of Credit | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate percentage	0.035%
Interest rate spread	0.12%
Interest rate floor	0.50%

Credit Facilities - Narrative (

Credit Facilities - Narrative (Details)	3 Months Ended	6 Months Ended
	Mar. 31, 2021USD ($)	Mar. 31, 2021USD ($)	Sep. 30, 2020USD ($)
Line of Credit Facility [Line Items]
Debt amortization fiscal year 2021	$ 0	$ 0
Debt amortization fiscal year 2022	6,750,000	6,750,000
Debt amortization fiscal 2023	8,750,000	8,750,000
Debt amortization fiscal 2024	8,750,000	8,750,000
Debt amortization fiscal 2025	38,500,000	38,500,000
Voluntary principal amortization of term debt	3,800,000
Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative notional amount	$ 28,800,000	$ 28,800,000	$ 36,000,000
Derivative fixed interest rate	1.61%	1.61%
Interest expense increase (less than)		$ 200,000
Secured Debt | Term Loans
Line of Credit Facility [Line Items]
Fixed charge coverage ratio		1.25
Ratio of funded indebtedness to EBITDA through maturity		2.75
Debt amortization fiscal year 2021	$ 7,000,000	$ 7,000,000
Debt amortization fiscal year 2022	7,000,000	7,000,000
Debt amortization fiscal 2023	8,750,000	8,750,000
Debt amortization fiscal 2024	8,750,000	8,750,000
Debt amortization fiscal 2025	$ 8,750,000	$ 8,750,000
Secured Debt | Term Loans | Excess Cash Flows Greater Than Or Equal to 2.50
Line of Credit Facility [Line Items]
Percentage of excess cash flow for each year of funded indebtedness to EBDTA		75.00%
Ratio of funded indebtedness to adjusted EBDTA, actual		2.50
Secured Debt | Term Loans | Excess Cash Flows Less Than 2.50
Line of Credit Facility [Line Items]
Percentage of excess cash flow for each year of funded indebtedness to EBDTA		50.00%
Secured Debt | Term Loans | Excess Cash Flows Equal to 1.50
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to adjusted EBDTA, actual		1.5
Secured Debt | Term Loans | Excess Cash Flows Less Than 1.50
Line of Credit Facility [Line Items]
Percentage of excess cash flow for each year of funded indebtedness to EBDTA		0.00%
Ratio of funded indebtedness to adjusted EBDTA, actual		1.5
Secured Debt | Term Loans | Maximum
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to EBITDA through maturity		3.75
Interest rate spread	4.50%	4.50%
Secured Debt | Term Loans | Maximum | Excess Cash Flows Less Than 2.50
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to adjusted EBDTA, actual		2.50
Secured Debt | Term Loans | Minimum
Line of Credit Facility [Line Items]
Interest rate spread	2.50%	2.50%
Secured Debt | Term Loans | LIBOR
Line of Credit Facility [Line Items]
Interest rate spread	0.12%	0.12%
Secured Debt | Revolving Line of Credit
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 25,000,000	$ 25,000,000
Line of credit outstanding balance	0	0
Line of credit, current borrowing capacity	$ 25,000,000	$ 25,000,000
Secured Debt | Revolving Line of Credit | LIBOR
Line of Credit Facility [Line Items]
Interest rate spread	0.12%	0.12%
Secured Debt | Letter of Credit
Line of Credit Facility [Line Items]
Line of credit, current borrowing capacity	$ 5,000,000	$ 5,000,000

Stock-based Compensation and _3

Stock-based Compensation and Equity Grants - Narrative (Details) - Employee Stock Option	6 Months Ended
	Mar. 31, 2021shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards authorized for issuance (in shares)	0
Expiration term of share-based compensation plan	10 years
Number of shares available for grant (in shares)	2,000,000

Stock-based Compensation and _4

Stock-based Compensation and Equity Grants - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total unrecognized expense	$ 4,122		$ 4,122
Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock option expense	386	$ 182	844	$ 384
DLH employees
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total unrecognized expense	3,888		$ 3,888
Weighted average share based compensation expense recognition period			4 years 4 months 20 days
DLH employees | Restricted Stock Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stock units granted (in shares)			147,431
DLH employees | Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock option expense	270	95	$ 612	211
Non-employee directors
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total unrecognized expense	234		$ 234
Non-employee directors | Restricted Stock Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stock units granted (in shares)			63,177
Non-employee directors | Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock option expense	$ 116	$ 87	$ 232	$ 173

Stock-based Compensation and _5

Stock-based Compensation and Equity Grants - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Mar. 31, 2021	Sep. 30, 2020
Number of Shares
Options outstanding, September 30, 2020 (in shares)	2,129,000
Exercised (in shares)	(63,000)
Granted (in shares)	245,000
Cancelled (in shares)	(25,000)
Options outstanding, March 31, 2021 (in shares)	2,286,000	2,129,000
Weighted Average Exercise Price
Options outstanding, September 30, 2020 (in dollars per share)	$ 6.14
Exercised (in dollars per share)	3.62
Granted (in dollars per share)	10.04
Cancelled (in dollars per share)	6.28
Options outstanding, March 31, 2021 (in dollars per share)	$ 7.03	$ 6.14
Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term	7 years 6 months	7 years 4 months 24 days
Aggregate Intrinsic Value
Options outstanding at September 30, 2020	$ 6,593
Options outstanding at March 31, 2021	$ 11,407	$ 6,593

Stock-based Compensation and _6

Stock-based Compensation and Equity Grants - Stock Options Outstanding, Vested and Unvested (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended	12 Months Ended
	Mar. 31, 2021	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Vested and exercisable (in shares)	1,362	1,213
Unvested (in shares)	924	916
Option outstanding (in shares)	2,286	2,129
Weighted average exercise price (in dollars per share)	$ 2.75	$ 2.25
Aggregate intrinsic value	$ 9.8	$ 6.1
Weighted average remaining term	4 years 7 months 6 days	4 years 7 months 6 days

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income	$ 2,567	$ 2,076	$ 4,381	$ 3,628
Denominator:
Denominator for basic net income (loss) per share - weighted-average outstanding shares (in shares)	12,544	12,299	12,521	12,193
Effect of dilutive securities:
Stock options and restricted stock (in shares)	1,026	704	1,047	693
Denominator for diluted net income (loss) per share - weighted-average outstanding shares (in shares)	13,570	13,003	13,568	12,886
Net income per share - basic (in dollars per share)	$ 0.20	$ 0.17	$ 0.35	$ 0.30
Net income per share - diluted (in dollars per share)	$ 0.19	$ 0.16	$ 0.32	$ 0.28

Commitments and Contingencies -

Commitments and Contingencies - Contractual Obligations (Details) $ in Thousands	Mar. 31, 2021USD ($)
Debt obligations
Debt obligations	$ 62,750
2021 (remaining)	0
2022	6,750
2023	8,750
2024	8,750
2025	38,500
Thereafter	0
Operating Leases
Total future lease payments	29,576
2021 (remaining)	1,657
2022	3,501
2023	3,391
2024	3,251
2025	3,092
Thereafter	14,684
Total Contractual Obligations
Total Obligations	92,326
2021 (remaining)	1,657
2022	10,251
2023	12,141
2024	12,001
2025	41,592
Thereafter	14,684
Facility leases
Operating Leases
Total future lease payments	29,316
2021 (remaining)	1,615
2022	3,418
2023	3,308
2024	3,199
2025	3,092
Thereafter	14,684
Equipment operating leases
Operating Leases
Total future lease payments	260
2021 (remaining)	42
2022	83
2023	83
2024	52
2025	0
Thereafter	$ 0

Commitment and Contingencies -

Commitment and Contingencies - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Accrued workers' compensation insurance	$ 6,512	$ 5,529