CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 30, 2017	Sep. 30, 2016
Current assets
Cash and cash equivalents	$ 24,680,301	$ 18,767,661
Accounts receivable	2,748,597	4,511,091
Unbilled receivables, net	1,480,822	1,597,672
Inventories	4,179,654	3,645,828
Prepaid expenses and other current assets	1,092,064	847,207
Total current assets	34,181,438	29,369,459
Property and equipment, net	6,669,011	6,962,562
Other assets	187,315	156,948
Total assets	41,037,764	36,488,969
Current liabilities
Accounts payable	1,321,251	1,503,771
Accrued expenses	1,760,037	1,889,908
Deferred revenue	280,354	179,585
Total current liabilities	3,361,642	3,573,264
Non-current deferred income taxes	67,742	67,701
Total liabilities	3,429,384	3,640,965
Commitments and contingencies (See Note 14)
Shareholders' equity
Preferred stock, 10,000,000 shares authorized, $.001 par value, of which 200,000 shares are authorized as Class A Convertible stock. No shares issued and outstanding at September 30, 2017 and 2016
Common stock, $.001 par value: 75,000,000 shares authorized, 18,879,580 and 18,812,465 issued at September 30, 2017 and 2016, respectively	18,880	18,813
Additional paid-in capital	51,583,841	51,392,159
Retained earnings	7,374,196	2,805,569
Treasury stock, at cost, 2,096,451 shares at September 30, 2017 and at September 30, 2016	(21,368,537)	(21,368,537)
Total shareholders' equity	37,608,380	32,848,004
Total liabilities and shareholders' equity	$ 41,037,764	$ 36,488,969

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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Balance Type:	credit
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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.