Commitments And Contingencies	6 Months Ended
Mar. 31, 2017
Commitments And Contingencies [Abstract]
Legal Matters	12. COMMITMENTS AND CONTINGENCIES Legal Matters From time to time we are a party to various claims, lawsuits and other legal proceedings that arise in the ordinary course of business. We maintain various insurance coverages to minimize financial risk associated with these proceedings. None of these proceedings, separately or in the aggregate, are expected to have a material adverse effect on our financial position, results of operations or cash flows. With respect to all such proceedings, we record reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. We expense routine legal costs related to these proceedings as they are incurred. The following is a discussion of our significant legal matters: Capstone Construction Claims From 2003 to 2005, two of our former subsidiaries performed HVAC and electrical work under contract with Capstone Building Corporation (“Capstone”) on a university student housing project in Texas. In 2005, our subsidiaries filed for arbitration against Capstone, seeking payment for work performed, change orders and other impacts. The parties settled those claims, and the release included a waiver of warranties associated with any of the HVAC work. Several years later, the subsidiaries discontinued operations, and the Company sold their assets. On October 24, 2013, Capstone filed a petition in the 12th Judicial District Court of Walker County, Texas against these subsidiaries, among other subcontractors, seeking contribution, defense, indemnity and damages for breach of contract in connection with alleged construction defect claims brought against Capstone by the owner of the student housing project. The owner claims $10,406 in damages, plus attorneys’ fees and costs against Capstone, which Capstone is seeking to recover from the subcontractors. The claims against the Company are based on alleged defects in the mechanical design, construction and installation of the HVAC and electrical systems performed by our former subsidiaries. Based on the settlement reached in the 2005 arbitration, we moved for, and the District Court granted us, summary judgment, dismissing all of Capstone’s claims in the 2013 lawsuit. Capstone appealed, and in April, 2016, the 10th Court of Appeals, Waco, Texas Division, reversed the ruling with respect to the indemnity claims and remanded the case back to the District Court. The Texas Supreme Court subsequently denied our petition to review this decision and our motion for rehearing. As a result, we filed a new motion for summary judgment at the District Court level in April 2017. The Company will defend the claims and expects ultimately to prevail on the merits, but there can be no assurance that the Company will prevail or that it will not incur costs and liability for indemnity in connection with resolution of the claims. To date, the Company has not established a reserve with respect to this matter, as we believe the likelihood of our responsibility for damages is not probable and a potential range of exposure is not reasonably estimable. Risk-Management We retain the risk for workers’ compensation, employer’s liability, automobile liability, construction defects, general liability and employee group health claims, as well as pollution coverage, resulting from uninsured deductibles per accident or occurrence which are generally subject to annual aggregate limits. Our general liability program provides coverage for bodily injury and property damage. In many cases, we insure third parties, including general contractors, as additional insureds under our insurance policies. Losses are accrued based upon our known claims incurred and an estimate of claims incurred but not reported. As a result, many of our claims are effectively self-insured. Many claims against our insurance are in the form of litigation. At March 31, 2017 and September 30, 2016, we had $6,198 and $5,464, respectively, accrued for insurance liabilities. We are also subject to construction defect liabilities, primarily within our Residential segment. As of March 31, 2017 and September 30, 2016, we had $219 and $235, respectively, reserved for these claims. Because the reserves are based on judgment and estimates, and involve variables that are inherently uncertain, such as the outcome of litigation and an assessment of insurance coverage, there can be no assurance that the ultimate liability will not be higher or lower than such estimates or that the timing of payments will not create liquidity issues for the Company. Some of the underwriters of our casualty insurance program require us to post letters of credit as collateral. This is common in the insurance industry. To date, we have not had a situation where an underwriter has had reasonable cause to effect payment under a letter of credit. At March 31, 2017 and September 30, 2016, $6,176 and $6,126, respectively, of our outstanding letters of credit was utilized to collateralize our insurance program. Surety As of March 31, 2017, the estimated cost to complete our bonded projects was approximately $38,949. We evaluate our bonding requirements on a regular basis, including the terms offered by our sureties. We believe the bonding capacity presently provided by our current sureties is adequate for our current operations and will be adequate for our operations for the foreseeable future. Posting letters of credit in favor of our sureties reduces the borrowing availability under our credit facility. Other Commitments and Contingencies Some of our customers and vendors require us to post letters of credit, or provide intercompany guarantees, as a means of guaranteeing performance under our contracts and ensuring payment by us to subcontractors and vendors. If our customer has reasonable cause to effect payment under a letter of credit, we would be required to reimburse our creditor for the letter of credit. At March 31, 2017 and September 30, 2016, $458 and $818, respectively, of our outstanding letters of credit were to collateralize our vendors. From time to time, we may enter into firm purchase commitments for materials such as copper or aluminum wire which we expect to use in the ordinary course of business. These commitments are typically for terms of less than one year and require us to buy minimum quantities of materials at specific intervals at a fixed price over the term. As of March 31, 2017, we had no such purchase orders.

Commitments And Contingencies

6 Months Ended

Mar. 31, 2017

Commitments And Contingencies [Abstract]

12. COMMITMENTS AND CONTINGENCIES

Legal Matters

From time to time we are a party to various claims, lawsuits and other legal proceedings that arise in the ordinary course of business. We maintain various insurance coverages to minimize financial risk associated with these proceedings. None of these proceedings, separately or in the aggregate, are expected to have a material adverse effect on our financial position, results of operations or cash flows. With respect to all such proceedings, we record reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. We expense routine legal costs related to these proceedings as they are incurred.

The following is a discussion of our significant legal matters:

Capstone Construction Claims

From 2003 to 2005, two of our former subsidiaries performed HVAC and electrical work under contract with Capstone Building Corporation (“Capstone”) on a university student housing project in Texas. In 2005, our subsidiaries filed for arbitration against Capstone, seeking payment for work performed, change orders and other impacts. The parties settled those claims, and the release included a waiver of warranties associated with any of the HVAC work. Several years later, the subsidiaries discontinued operations, and the Company sold their assets.

On October 24, 2013, Capstone filed a petition in the 12th Judicial District Court of Walker County, Texas against these subsidiaries, among other subcontractors, seeking contribution, defense, indemnity and damages for breach of contract in connection with alleged construction defect claims brought against Capstone by the owner of the student housing project. The owner claims $10,406 in damages, plus attorneys’ fees and costs against Capstone, which Capstone is seeking to recover from the subcontractors. The claims against the Company are based on alleged defects in the mechanical design, construction and installation of the HVAC and electrical systems performed by our former subsidiaries.

Based on the settlement reached in the 2005 arbitration, we moved for, and the District Court granted us, summary judgment, dismissing all of Capstone’s claims in the 2013 lawsuit. Capstone appealed, and in April, 2016, the 10th Court of Appeals, Waco, Texas Division, reversed the ruling with respect to the indemnity claims and remanded the case back to the District Court. The Texas Supreme Court subsequently denied our petition to review this decision and our motion for rehearing. As a result, we filed a new motion for summary judgment at the District Court level in April 2017. The Company will defend the claims and expects ultimately to prevail on the merits, but there can be no assurance that the Company will prevail or that it will not incur costs and liability for indemnity in connection with resolution of the claims. To date, the Company has not established a reserve with respect to this matter, as we believe the likelihood of our responsibility for damages is not probable and a potential range of exposure is not reasonably estimable.

Risk-Management

We retain the risk for workers’ compensation, employer’s liability, automobile liability, construction defects, general liability and employee group health claims, as well as pollution coverage, resulting from uninsured deductibles per accident or occurrence which are generally subject to annual aggregate limits. Our general liability program provides coverage for bodily injury and property damage. In many cases, we insure third parties, including general contractors, as additional insureds under our insurance policies. Losses are accrued based upon our known claims incurred and an estimate of claims incurred but not reported. As a result, many of our claims are effectively self-insured. Many claims against our insurance are in the form of litigation. At March 31, 2017 and September 30, 2016, we had $6,198 and $5,464, respectively, accrued for insurance liabilities. We are also subject to construction defect liabilities, primarily within our Residential segment. As of March 31, 2017 and September 30, 2016, we had $219 and $235, respectively, reserved for these claims. Because the reserves are based on judgment and estimates, and involve variables that are inherently uncertain, such as the outcome of litigation and an assessment of insurance coverage, there can be no assurance that the ultimate liability will not be higher or lower than such estimates or that the timing of payments will not create liquidity issues for the Company.

Some of the underwriters of our casualty insurance program require us to post letters of credit as collateral. This is common in the insurance industry. To date, we have not had a situation where an underwriter has had reasonable cause to effect payment under a letter of credit. At March 31, 2017 and September 30, 2016, $6,176 and $6,126, respectively, of our outstanding letters of credit was utilized to collateralize our insurance program.

Surety

As of March 31, 2017, the estimated cost to complete our bonded projects was approximately $38,949. We evaluate our bonding requirements on a regular basis, including the terms offered by our sureties. We believe the bonding capacity presently provided by our current sureties is adequate for our current operations and will be adequate for our operations for the foreseeable future. Posting letters of credit in favor of our sureties reduces the borrowing availability under our credit facility.

Other Commitments and Contingencies

Some of our customers and vendors require us to post letters of credit, or provide intercompany guarantees, as a means of guaranteeing performance under our contracts and ensuring payment by us to subcontractors and vendors. If our customer has reasonable cause to effect payment under a letter of credit, we would be required to reimburse our creditor for the letter of credit. At March 31, 2017 and September 30, 2016, $458 and $818, respectively, of our outstanding letters of credit were to collateralize our vendors.

From time to time, we may enter into firm purchase commitments for materials such as copper or aluminum wire which we expect to use in the ordinary course of business. These commitments are typically for terms of less than one year and require us to buy minimum quantities of materials at specific intervals at a fixed price over the term. As of March 31, 2017, we had no such purchase orders.