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Note 9 - Equity-Method Investment - Equity-Method Investment Recorded in Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
NMTC Program [Member]        
Equity Method Investment, Other than Temporary Impairment $ 3,498 $ 4,131 $ 10,494 $ 12,391
Our portion of the partnership’s operating losses 2,066 1,731 6,197 5,196
Non-cash interest expense related to the amortization of the discounted fair value of future equity contributions 31 155 185 549
Tax benefits and credits generated $ 7,592 $ 7,414 20,374 22,316
Equity Method Investment, Other than Temporary Impairment     $ 10,500 $ 12,400