Note 1 - Basis of Presentation - Percentage of the Company's Equity Ownership (Details)	Dec. 31, 2017
UNITED STATES
Majority Interest Ownership Percentage By Parent	100.00%
JAPAN
Majority Interest Ownership Percentage By Parent	100.00%
CANADA
Majority Interest Ownership Percentage By Parent	100.00%
SOUTH AFRICA
Majority Interest Ownership Percentage By Parent	51.00%
INDIA
Majority Interest Ownership Percentage By Parent	51.00%
AUSTRALIA
Majority Interest Ownership Percentage By Parent	51.00%
CHINA
Majority Interest Ownership Percentage By Parent	51.00%
MEXICO
Majority Interest Ownership Percentage By Parent	51.00%
TURKEY
Majority Interest Ownership Percentage By Parent	51.00%
BRAZIL
Majority Interest Ownership Percentage By Parent	51.00%	[1]

[1] In September 2016, the Company established a new joint venture subsidiary in Brazil, see Note 14 to the Company's Consolidated Financial Statements - Purchase of Interests in Subsidiaries, below. This new subsidiary purchased stock in two Brazilian companies - New Momentum, Ltda. and New Momentum Servicos Temporarios Ltda.