CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 341,920	$ (2,198,490)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	234,846	210,549
Share-based compensation expense:
Stock awards	203,386	199,996
Deferred income taxes	33	61,832
(Increase) decrease in:
Accounts receivable	829,445	374,970
Unbilled receivables, net		554,193
Inventories	(290,704)	(260,889)
Prepaid expenses and other current assets	(19,134)	149,285
Income taxes receivable/payable	7,305	(8,469)
Increase (decrease) in:
Accounts payable, net	(543,857)	69,284
Accrued expenses	(9,660)	(205,178)
Contract liability	169,098	(60,109)
Net cash provided by (used in) operating activities	922,678	(1,113,026)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(72,195)	(128,732)
Net cash used in investing activities	(72,195)	(128,732)
Net increase (decrease) in cash and cash equivalents	850,483	(1,241,758)
Cash and cash equivalents, beginning of year	20,390,713	24,680,301
Cash and cash equivalents, end of period	$ 21,241,196	23,438,543
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for income tax		$ 8,469