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Note 11 - Operating Segments (Detail) (USD $)
1 Months Ended
Dec. 31, 2012
Number of Reportable Segments 2
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual $ 247,000
Business Combination Pro Forma Information Expenses Since Acquisition Date Actual 938,000
Adjustment for Long-term Intercompany Transactions, Tax Benefit (Expense) 230,000
Depreciation And Amortization Expenses [Member]
 
Amortization of Acquired Intangible Assets $ 163,000