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Note 2 - Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Salvage Value, Percentage	10.00%		10.00%
Research and Development Expense	$ 7,985	$ 0	$ 86,790	$ 364,105
Effective Income Tax Rate Reconciliation, Percent			24.99%
Income Tax Expense (Benefit)	(942,267)	(262,034)	$ (505,074)	(750,037)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%		35.00%
Effective Income Tax Rate Reconciliation Tax Cut and Jobs Act					$ 3,370,000
Income Tax (Expense) Benefit, Continuing Operations, Estimated One-time Transition Tax on Post-1986 Foreign Unremitting Earnings					3,270,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability					90,000
Unrecognized Tax Benefits	702,353		$ 702,353		1,428,561
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	594,000,000		594,000,000		599,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	(67,949)	7,000	(4,949)	73,000
Deferred Tax Liabilities, Other	2,300,000		2,300,000		2,500,000
Provision for Doubtful Accounts		(300,419)	2,298,488	203,905
Provision for Doubtful Accounts, Reversal	(2,128,579)			(203,905)
Revenues	16,747,827	33,222,625	$ 63,159,929	$ 70,813,414
Advertising Expense	$ 9,754	$ 186,381
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares)	836,534	571,533	836,534	571,533
Number of Operating Segments			1
Customer Concentration Risk [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Accounts Receivable, Gross, Current	$ 44,212,605	$ 21,812,355	$ 44,212,605	$ 21,812,355
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage	54.00%		36.00%
Customer Concentration Risk [Member] | Major Custom A [Member] | Sales Revenue, Net [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage			18.00%
Customer Concentration Risk [Member] | Major Customer B [Member] | Sales Revenue, Net [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage			18.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage	74.00%	59.00%	84.00%	82.00%
Accounts Receivable, Gross	$ 18,651,339	$ 13,237,351	$ 18,651,339	$ 13,237,351
Accounts Payable	$ 3,043,782	$ 0	$ 3,043,782	$ 0
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor A [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage	39.00%	20.00%	33.00%	26.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor B [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage	24.00%	15.00%	30.00%	19.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor C [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage	11.00%	12.00%	21.00%	15.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor D [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage		12.00%		12.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor E [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage				10.00%
Continuing Operations [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Income Tax Expense (Benefit)	$ 942,000		$ 505,000
Unrecognized Tax Benefits	$ 1,300,000		1,300,000		$ 2,000,000
Advertising Expense			$ 554,070	$ 847,177
Warrant [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	858,334	858,334	858,334	858,334
Restricted Stock [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	35,000
Shipping and/or Handling [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Revenues	$ 347		$ 6,624
Cost of Goods and Services Sold		$ 623		$ 1,576

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