Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares	Jul. 05, 2015	Dec. 31, 2014
Series A Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	24,850	24,850
Preferred stock, shares issued (in shares)	0	0
Nonvoting Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	0	0
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	975,150	975,150
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	20,826,236	20,567,735
Common stock, shares outstanding (in shares)	20,791,544	20,485,043
Treasury stock (in shares)	34,692	82,692