Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Note 2 - Summary of Significant Accounting Policies (Tables) [Line Items]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

An analysis of the allowance for doubtful accounts is as follows:

Balance at January 1, 2018	$	218,976
Provision for the year		13,241
Write off		(7,422	)
Balance at December 31, 2018	$	224,795

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A reconciliation of the January 1, 2017 through December 31, 2018, amount of unrecognized tax benefits excluding interest and penalties (“Gross UTB”) is as follows:

	Gross UTB
	2018			2017

Beginning Balance – January 1	$	1,428,561			1,642,381
Decrease in unrecorded tax benefits taken		(706,507	)		(213,820	)
Ending Balance – December 31	$	722,054			1,428,561

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table presents a reconciliation of basic and diluted earnings per share for the years ended December 31, 2018 and 2017:

	Years Ended December 31,
	2018		2017

Net Income	$	5,299,625	$	3,764,611

Weighted average shares outstanding – basic*		28,393,854		27,677,935
Dilutive stock options and unvested restricted stock		219,430		77,928
Weighted average shares outstanding – diluted		28,613,284		27,755,863

Net income per share of common stock
Basic	$	0.19	$	0.14
Diluted	$	0.19	$	0.14

* Including 814,034 and 777,518 shares that were granted and vested but not yet issued for the years ended December 31, 2018 and 2017, respectively.

Property Plant and Equipment Estimated Useful Lives [Member]

Note 2 - Summary of Significant Accounting Policies (Tables) [Line Items]

Property, Plant and Equipment [Table Text Block]

Depreciation of property and equipment is provided using the straight-line method for substantially all assets with no salvage value and estimated lives as follows:

Computer and office equipment	5 years
Decoration and renovation	10 years