Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2017	Sep. 30, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 2,253,952	$ 1,954,422
Marketable securities	13,555	13,545
Accounts receivable, net	4,349,733	6,158,504
Inventories:
Parts, components, and materials	783,553	1,432,135
Work-in-process	985,934	812,455
Finished products	4,780,514	4,745,660
Inventory net	6,550,001	6,990,250
Prepaid expenses and other current assets	782,128	572,440
TOTAL CURRENT ASSETS	13,949,369	15,689,161
Property, plant and equipment:
Buildings and improvements	195,950	188,728
Machinery, equipment and vehicles	5,842,970	5,677,241
Property, plant and equipment	6,038,920	5,865,969
Less accumulated depreciation and amortization	5,637,222	5,345,786
Property, Plant and Equipment Net	401,698	520,183
Goodwill	0	0
Intangible assets, net	0	1,106,500
Other assets	1,116,583	761,865
TOTAL ASSETS	15,467,650	18,077,709
CURRENT LIABILITIES
Revolving credit borrowings	0	0
Accounts payable	3,138,057	2,551,080
Accrued compensation and employee benefits	1,629,175	1,701,103
Accrued expenses	1,169,392	1,472,272
Unearned revenue	500,878	476,565
TOTAL CURRENT LIABILITIES	6,437,502	6,201,020
Revolving credit borrowings	4,950,000	1,750,000
Unearned revenue	139,601	76,950
Other long-term liabilities	1,570,861	1,522,825
TOTAL LIABILITIES	13,097,964	9,550,795
SHAREHOLDERS’ EQUITY
Common stock, par value $.01	100,448	100,448
Capital in excess of par value	40,999,470	40,517,919
Retained earnings	(35,136,539)	(28,124,959)
Less treasury stock, at cost	(3,437,643)	(3,437,643)
Accumulated other comprehensive loss	(156,050)	(528,851)
TOTAL SHAREHOLDERS’ EQUITY	2,369,686	8,526,914
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 15,467,650	$ 18,077,709

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.