Stockholders' Equity (Details 1) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Exercisable, beginning of period (in shares)	132,099	83,718
Shares, Vested (in shares)	34,801	56,464
Shares, Exercised (in shares)	29,500	0
Shares, Cancelled (in shares)	(73,000)	(8,083)
Shares Exercisable at the end of period (in shares)	64,400	132,099
Weighted Average Exercise Price, Exercisable, beginning of period (in dollars per share)	$ 5.07	$ 4.67
Weighted Average Exercise Price, Vested (in dollars per share)	5.65	5.76
Weighted Average Exercise Price, Exercised (in dollars per share)	2.88	0
Weighted Average Exercise Price, Cancelled (in dollars per share)	6.06	5.77
Weighted Average Exercise Price, Exercisable at the end of period (in dollars per share)	$ 5.26	$ 5.07
Shares Outstanding, beginning of period (in shares)	214,500	228,500
Shares, Granted (in shares)	49,000	0
Shares Exercised (in shares)	29,500	0
Shares Cancelled (in shares)	(80,000)	(14,000)
Shares Outstanding at the end of period (in shares)	154,000	214,500
Weighted Average Exercise Price, Outstanding, beginning of period (in dollars per share)	$ 5.20	$ 5.23
Weighted Average Exercise Price, Granted (in dollars per share)	5.27	0
Weighted Average Exercise Price, Exercised (in dollars per share)	2.88	0
Weighted Average Exercise Price, Cancelled (in dollars per share)	6.01	5.68
Weighted Average Exercise Price, Outstanding at the end of period (in dollars per share)	$ 5.25	$ 5.20