Consolidated Condensed Balance Sheets (Unaudited) (Parentheticals) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,000,000us-gaap_PreferredStockSharesAuthorized	2,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued (in shares)	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding (in shares)	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	48,000,000us-gaap_CommonStockSharesAuthorized	48,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares)	33,503,392us-gaap_CommonStockSharesIssued	33,418,829us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares)	33,503,392us-gaap_CommonStockSharesOutstanding	33,418,829us-gaap_CommonStockSharesOutstanding

Face amount or stated value per share of common stock.

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