Consolidated Balance Sheets (Parentheticals) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Redeemable Convertible Preferred Stock Series B [Member]
Preferred stock, par or stated value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock liquidation preference value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock shares authorized (in shares)	40,000	40,000
Preferred stock shares issued (in shares)	16,600	16,600
Preferred stock shares outstanding (in shares)	16,600	16,600
Common Class A [Member]
Common stock, par or stated value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock shares issued (in shares)	16,941,250	16,887,377
Common stock shares outstanding (in shares)	16,941,250	16,887,377

Face amount or stated value per share of common stock.

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