CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2018	Jun. 30, 2017
Current Assets:
Cash and cash equivalents	$ 402,738	$ 118,405
Accounts receivable (net of allowance for doubtful accounts of $232,500 at June 30, 2018 and $5,000 at June 30, 2017)	796,923	468,548
Inventories	1,144,068	1,055,447
Prepaid expenses	70,991	55,985
Total current assets	2,414,720	1,698,385
Fixed Assets:
Machinery and equipment	2,511,638	2,507,190
Leasehold improvements	553,596	553,596
Furniture and fixtures	148,303	148,303
Total	3,213,537	3,209,089
Less: Accumulated depreciation and amortization	3,164,051	3,136,835
Net fixed assets	49,486	72,254
Patents, net	47,275	30,086
TOTAL ASSETS	2,511,481	1,800,725
Current Liabilities:
Current portion of capital lease obligation	8,962	8,391
Accounts payable	703,538	694,958
Customer advances	857,842	180,137
Accrued employee compensation	238,590	189,783
Accrued professional services	98,000	71,000
Accrued warranty expense	25,000	25,000
Other accrued liabilities	912	49,512
Total current liabilities	1,932,844	1,218,781
Capital lease obligation, net of current portion	14,601	23,564
Commitments (Note 2)
Stockholders' Equity:
Common stock, $0.01 par value: 50,000,000 shares authorized; issued and outstanding - 10,197,139 shares at June 30, 2018 and 8,872,916 shares at June 30, 2017	101,972	88,729
Additional paid-in capital	45,484,186	45,140,383
Accumulated deficit	(45,022,122)	(44,670,732)
Total stockholders' equity	564,036	558,380
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 2,511,481	$ 1,800,725

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).

Name:	us-gaap_AccountsPayableCurrent
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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682