Note 2 - Acquisition - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($)	Mar. 31, 2017	Oct. 14, 2016	Sep. 30, 2016
Assets acquired:
Goodwill	$ 6,031,511		$ 3,910,089
Triton Miami, Inc. [Member]
Assets acquired:
Accounts receivable		$ 1,117,000
Inventories		1,149,000
Property and equipment, net		68,000
Other non-current assets		1,000
Intangible assets		4,841,000
Goodwill		2,121,000
Total assets acquired		9,297,000
Liabilities assumed:
Accounts payable		584,000
Accrued expenses		172,000
Total liabilities assumed		756,000
Net purchase price		$ 8,541,000