Common Stock (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2009
Common Stock [Line Items]
Common stock, shares outstanding			17,032,666
Repurchases of common stock in the open market	$ 7,993,000	$ 4,302,000
Shares sold in private placement				2,857,143
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01	$ 0.01
Securities purchase agreement purchase price				$ 20,000,000
Beneficial ownership maximum percentage				23.00%
Stock beneficially owned			3,755,000
Purchase price percentage			1.00%
Shareholders indemnification amount			$ 25,000
Sagard [Member]
Common Stock [Line Items]
Share price (in dollars per share)				$ 7.00
Stock beneficially owned			3,639,367
Stock beneficial ownership percentage			21.40%
Maximum [Member]
Common Stock [Line Items]
Liquidated damages amount			$ 2,400,000
Stock Repurchase Program [Member]
Common Stock [Line Items]
Stock repurchased during period (shares)	354,000	182,000
Repurchases of common stock in the open market	$ 8,000,000	$ 4,300,000
2011 Plan [Member]
Common Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number			568,812
Shares reserved for future issuance			827,855