Condensed Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2018	Sep. 30, 2017
Current Assets
Cash and cash equivalents	$ 9,141,197	$ 18,536,111
Short-term investments	6,285,225	5,937,150
Accounts receivables, net	7,159,376	7,237,641
Inventories, net	10,879,149	8,453,567
Other current assets	1,069,504	978,933
Total current assets	34,534,451	41,143,402
Property, plant and equipment, net	5,053,859	5,434,172
Other Assets
Long-term investments	20,180,000	19,816,000
Goodwill	4,708,511	2,570,511
Intangible assets, net	5,618,260	284,787
Other	228,820	245,165
Total other assets	30,735,591	22,916,463
Total Assets	70,323,901	69,494,037
Current Liabilities
Accounts payable	1,798,776	1,739,791
Accrued compensation	2,103,906	2,410,026
Accrued expenses	31,441	93,304
Total current liabilities	3,934,123	4,243,121
Other Liabilities
Deferred taxes	60,076	444,076
Deferred rent	276,797	281,720
Total other liabilities	336,873	725,796
Total Liabilities	4,270,996	4,968,917
Commitments and Contingencies
Shareholders’ Equity
Preferred stock, $.01 par value; 500,000 shares; no shares issued or outstanding
Common stock, authorized 50,000,000, $.01 par value; 13,811,076 and 13,812,821, shares issued and outstanding at March 31, 2018 and September 30, 2017	138,111	138,128
Additional paid-in capital	56,296,908	55,406,888
Retained earnings	9,617,886	8,980,104
Total Shareholders’ Equity	66,052,905	64,525,120
Total Liabilities and Shareholders’ Equity	$ 70,323,901	$ 69,494,037