Note 3 - Acquisition - Assets Acquired and Liabilities Assumed (Details) - USD ($)	Sep. 30, 2019	Jan. 04, 2019	Sep. 30, 2018
Goodwill	$ 4,877,739		$ 4,820,185
Fulton and Mill City [Member]
Accounts receivable		$ 828,000
Unbilled revenue		438,000
Prepaid expenses		341,000
Property and equipment		1,201,000
Intangible assets		244,000
Other assets		35,000
Goodwill		57,000
Total assets acquired		3,144,000
Accounts payable		1,250,000
Accrued expenses		455,000
Capital lease obligation		175,000
Total liabilities assumed		1,880,000
Net purchase price		$ 1,264,000