Consolidated Statements of Cash Flows Unaudited - USD ($)	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 631,384	$ 148,500
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	1,022,367	1,049,688
Gain on sale of equipment	(25,752)	(368,705)
Provision for deferred taxes	(76,910)	(91,069)
Decrease in contracts receivable	2,858,750	6,175,377
(Increase) decrease in retainage receivable	(806,151)	407,367
Decrease in other receivables	111,275	250
Increase in contract assets	(5,177,749)	(807,045)
Decrease in prepaid expenses	678,975	749,357
Increase (decrease) in accounts payable	2,896,014	(1,155,121)
Decrease in accrued expenses	(488,099)	(1,402,599)
(Decrease) increase in contract liabilities	(1,704,440)	418,125
Increase in income taxes payable	353,910
Net cash provided by operating activities	273,574	5,124,125
Cash flows from investing activities:
Investment in property and equipment	(585,008)	(445,790)
Proceeds from sales of property and equipment	47,365	423,620
Net cash used in investing activities	(537,643)	(22,170)
Cash flows from financing activities:
Preferred dividends paid	(154,500)	(154,500)
Treasury stock purchased by company	(149,998)
Borrowings on lines of credit and short term debt, net of (repayments)	3,430,753	149,231
Principal payments on long term debt	(1,228,506)	(1,142,063)
Net cash provided by (used in) financing activities	1,897,749	(1,147,332)
Increase in cash and cash equivalents	1,633,680	3,954,623
Cash and cash equivalents beginning of period	1,065,550	1,675,525
Cash and cash equivalents end of period	2,699,230	5,630,148
Supplemental schedule of noncash investing and financing activities:
Purchases of property & equipment under financing agreements	0	0
Insurance premiums financed	0	0
Accrued dividends on preferred stock	0	0
Cash paid during the year for:
Interest	$ 204,349	295,844
Income taxes		$ 21,032