Note 11 - Commitments and Contingencies - Leases and Debt Obligations (Details)	Jun. 30, 2018 USD ($)
Operating, total	$ 5,590,001
Operating, less than 1 year	740,000
Operating, 1-3 years	1,542,001
Operating, 4-5 years	1,373,000
Operating, more than 5 years	1,935,000
Capital, total	12,000
Capital, less than 1 year	12,000
Capital, 1-3 years
Capital, 4-5 years
Capital, more than 5 years
Total lease obligations, total	5,602,001
Total lease obligations, less than 1 year	752,000
Total lease obligations, 1-3 years	1,542,001
Total lease obligations, 4-5 years	1,373,000
Total lease obligations, more than 5 years	1,935,000
Total debt obligations, total	3,364,908
Total debt obligations, less than 1 year	3,364,908
Total debt obligations, 1-3 years
Total debt obligations, 4-5 years
Total debt obligations, more than 5 years
Total obligations, total	8,966,909
Total obligations, less than 1 year	4,116,908
Total obligations, 1-3 years	1,542,001
Total obligations, 4-5 years	1,373,000
Total obligations, more than 5 years	$ 1,935,000