Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.8.0.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Accumulated depreciation $ 5,471 $ 5,134
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, par value $ 0.0005 $ 0.0005
Preferred stock, shares issued
Common stock, par value $ 0.0005 $ 0.0005
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 27,696,593 26,313,593
Treasury stock, shares 16,566,701 9,232,817