Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities
Net (loss)/income from continuing operations	$ (219,740)	$ 378,222
Adjustments to reconcile net (loss)/income to net cash provided by continuing operating activities:
Depreciation and amortization and other non-cash items	457,309	324,188
Bad debt expense	0	10,000
Deferred income tax benefit	(149,000)	0
Stock-based compensation	300,743	213,996
Deferred income	(12,268)	(15,592)
Deferred lease liability	2,316	(4,153)
Changes in operating assets and liabilities:
Accounts receivable	788,807	443,407
Inventories	(834,580)	(517,286)
Prepaid expenses and other assets	82,876	76,271
Accounts payable, accrued expenses and other non-cash items	(324,293)	(361,821)
Net cash provided by continuing operating activities	92,170	547,232
Investing activities
Acquisition of property, plant and equipment	(85,198)	(35,323)
Additional patents	(21,296)	(28,778)
Net cash used in investing activities	(106,494)	(64,101)
Financing activities
Proceeds from exercise of stock options	136,056	69,825
Net cash provided by financing activities	136,056	69,825
Cash flows from discontinued operations
Net cash provided by operating activities	0	4,975
Net cash provided by discontinued operations	0	4,975
Net increase in cash and cash equivalents	121,732	557,931
Cash and cash equivalents at beginning of period	9,623,749	7,039,938
Cash and cash equivalents at end of period	9,745,481	7,597,869
Supplemental disclosure of cash flow information:
Cash paid for Income taxes	$ 76,725	$ 35,794