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Note 12 - Fair Values of Financial Instruments
6 Months Ended
Jun. 30, 2018
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
12.
FAIR VALUES OF FINANCIAL INSTRUMENTS
 
Cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, and due from factor, are carried at, or approximate, fair value because of their short-term nature.