Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 26,247	$ 28,290
Accounts receivable:
Trade, net of allowance	151,578	142,946
Retainage	24,312	21,360
Inventories	20,966	16,923
Costs and estimated earnings in excess of billings	31,446	13,438
Prepaid expenses and other current assets	8,144	8,795
Total current assets	262,693	231,752
Property and equipment, net	25,364	24,643
Goodwill	50,702	46,693
Intangible assets, net	30,590	31,413
Deferred tax assets	46,580	86,211
Other non-current assets	6,065	3,782
Total assets	421,994	424,494
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	130,591	120,710
Billings in excess of costs and estimated earnings	33,826	29,918
Total current liabilities	164,417	150,628
Long-term debt, net of current maturities	29,564	29,434
Other non-current liabilities	4,374	4,457
Total liabilities	198,355	184,519
Noncontrolling interest	3,232	3,271
STOCKHOLDERS' EQUITY:
Preferred stock, $0.01 par value, 10,000,000 shares authorized, none issued and outstanding	0	0
Common stock, $0.01 par value, 100,000,000 shares authorized; 22,049,529 shares issued and 21,205,536 and 21,336,975 outstanding, respectively	220	220
Treasury stock, at cost, 843,993 and 712,554 shares, respectively	(8,937)	(6,898)
Additional paid-in capital	196,810	196,955
Retained earnings	32,314	46,427
Total stockholders' equity	220,407	236,704
Total liabilities and stockholders' equity	$ 421,994	$ 424,494

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.