Note 8 - Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	December 31,
	2017		2016
Payroll expenses and tax payable	$	232,000	$	556,000
Commission and bonuses payable and general accrued liabilities		1,333,000		904,000
	$	1,565,000	$	1,460,000