CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 1,798,073	$ 1,974,713
Adjustments to reconcile net income to net cash provided by operating activities
Stock compensation expense	497,055	202,325
Provision for doubtful accounts and sales returns	9,976	12,498
Depreciation and amortization	990,743	767,686
Deferred income taxes	(500,704)	(56,400)
Net increase (decrease) in billings in excess of costs	135,157	(60,448)
(Increase) decrease in:
Accounts receivable	537,891	(649,343)
Inventories	22,459	188,149
Prepaid income taxes	48,076	0
Prepaid expenses and other current assets	(115,414)	(164,573)
Increase (decrease) in:
Accounts payable and accrued expenses	151,238	776,576
Income taxes payable	(354,521)	(161,294)
Net cash provided by operating activities	3,220,029	2,829,889
Cash flows from investing activities:
Purchases of property, plant and equipment	(1,294,343)	(241,468)
Acquisition of Biomedical technologies	(300,000)	0
Decrease in other assets	0	(71)
Net cash used in investing activities	(1,594,343)	(241,539)
Cash flows from financing activities
Issuance of common stock	123,489	264,509
Repayment of long term debt	(1,395,105)	(1,602,988)
Preferred stock dividends paid	(79,770)	(352,283)
Net cash used in financing activities	(1,351,386)	(1,690,762)
Effect of exchange rates on cash and cash equivalents	258,131	0
Net increase in cash and cash equivalents	532,431	897,588
Cash and cash equivalents, beginning	4,111,966	3,104,778
Cash and cash equivalents, ending	$ 4,644,397	$ 4,002,366